Researchers conducted a study to determine the relationship between male pattern baldness and risk of myocardial infarction (MI) in men under the age of 60. Cases were men younger than 60 admitted with an MI to one of five hospitals. Controls were men younger than 60 admitted to these hospitals with a different diagnosis. The physicians who cared for the patients were unaware that this study was being conducted. The nurses collecting the data did not know whether the men were cases or controls and they definitely did not know the purpose of the study. The nurses, however, were poorly trained in the use of the male pattern baldness scale. Based on this description (choose one answer):
a. This study is most prone to differential misclassification of exposure status
b. This study is most prone to nondifferential misclassification of disease status
c. This study is most prone to differential misclassification of disease status
d. This study is most prone to nondifferential misclassification of exposure status

Answers

Answer 1

Based on the description, this study is most prone to differential misclassification of exposure status. The correct answer is A.

The description of the study suggests that the nurses who collected the data were poorly trained in the use of the male pattern baldness scale. This means that they may have misclassified some men as having male pattern baldness when they did not actually have it, and vice versa.

This misclassification of exposure status (i.e., male pattern baldness) is more likely to be differential because the nurses were unaware of the purpose of the study and did not know whether the men were cases or controls. This means that their misclassification of exposure status is likely to be influenced by the outcome (i.e., MI).

For example, if the nurses believed that male pattern baldness was a risk factor for MI, they may have been more likely to classify cases as having male pattern baldness and controls as not having it, even if this was not accurate. This would result in differential misclassification of exposure status, which can bias the study results. The correct answer is A.

For more information regarding misclassification, visit:

brainly.com/question/15550192

#SPJ11


Related Questions

Draw a model using integer chips and circle the zero pairs

Answers

+----------------+

|  0  |  1  | -1  |

+-----+-----+-----+

|  2  | -2  |  3  |

+-----+-----+-----+

| -3  |  4  | -4  |

+-----+-----+-----+

 o            o

The zero pairs are (-2, 2) and (-4, 4), and I've circled them in the model above.

To draw a model using integer chips and circle the zero pairs, start by laying out the positive and negative integer chips side by side in a line. The negative numbers should be on the left and the positive numbers should be on the right. Next, take a second line of chips, also with negative numbers on the left and positive numbers on the right, and arrange it so that the chips on the first line line up with the corresponding chips on the second line. For example, the negative 3 chip on the first line should be paired with the positive 3 chip on the second line. The same should be done for all other chips. Finally, circle any pairs of chips where the sum of the two numbers is equal to 0. This will indicate that they are zero pairs.

For such more questions on integer chips:

brainly.com/question/15327444

#SPJ11

Four fifths of the articles produced by a certain. firm are for export. Of the rest, 2/3 are guaranteed to one merchant, and 1/9 similarly to another merchant. What fraction of the total articles produced goes on the open market?​

Answers

Answer:

84/100

Step by step explanation:

Let's assume that the firm produces a total of 100 articles, then:

Four fifths of the articles are for export: 4/5 x 100 = 80 articles for export
The rest, or 1/5 of the articles, are for the domestic market: 1/5 x 100 = 20 articles for the domestic market
Of these 20 articles for the domestic market:

2/3 are guaranteed to one merchant: 2/3 x 20 = 40/3 = 13.33 articles guaranteed to one merchant (rounding to two decimal places)
1/9 are guaranteed to another merchant: 1/9 x 20 = 20/9 = 2.22 articles guaranteed to another merchant (rounding to two decimal places)
The total number of articles guaranteed to merchants is therefore 13.33 + 2.22 = 15.55.

The fraction of articles produced that goes on the open market is the remaining fraction after subtracting the articles guaranteed to merchants from the total production:

Total production = 100 articles
Articles guaranteed to merchants = 15.55 articles
Articles on the open market = 100 - 15.55 = 84.45 articles
Therefore, the fraction of the total articles produced that goes on the open market is:

84.45/100 = 0.8445, or approximately 84/100.

The number of guests in a hotel per day resembles a normal distribution with a mean of 220 and standard deviation of 30. One day, the z-score of the number of guests was 2.3. How many guests did the hotel have on that day?

Answers

The hotel had 289 guests on the day in question. The z-score is a measure of how many standard deviations a data point is away from the mean of the distribution.

In this case, we are given that the number of guests in a hotel per day follows a normal distribution with a mean of 220 and a standard deviation of 30, and that the z-score of the number of guests on a particular day was 2.3.

Using the formula for z-score, we have:

z = (x - mu) / sigma

where x is the number of guests on the given day, mu is the mean of the distribution, and sigma is the standard deviation of the distribution.

Substituting the given values, we have:

2.3 = (x - 220) / 30

Multiplying both sides by 30, we get:

69 = x - 220

Adding 220 to both sides, we get:

x = 289

Therefore, the hotel had 289 guests on the day in question.

Find out more about standard deviations

brainly.com/question/19091705

#SPJ1

Find the probability that the spinner lands on a multiple of 3 or a dark green region. Give your answer as a fraction in
simplest form.
a 3/8
b 5/8
c 1/2
d 3/4

Answers

Answer:

As we do not have a visual representation of the spinner, we cannot give an accurate answer to this question. However, we can provide a general approach to solving such problems.

To find the probability of an event, we divide the number of favorable outcomes by the total number of possible outcomes.

In this case, we need to find the number of favorable outcomes for the spinner landing on a multiple of 3 or in the dark green region. We then divide this by the total number of possible outcomes.

Assuming the spinner is divided into equal regions, we can determine the number of favorable outcomes by counting the number of regions that satisfy the given conditions. Let's say there are m regions that are multiples of 3, and n regions that are in the dark green region. We also assume that these regions do not overlap.

The total number of possible outcomes is simply the total number of regions on the spinner, which we can denote as t. Therefore, the probability of the spinner landing on a multiple of 3 or in the dark green region is given by:

(m + n) / t

To simplify this fraction, we can try to reduce the numerator and denominator to their lowest terms by dividing both by their greatest common factor.

Without knowing the number of regions, however, we cannot give a specific answer to this problem.

i will mark branliest

Answers

Answer:

subtotal: $23.45

tip: $4.22

total: $27.67

Step-by-step explanation:

7.99+1.00+8.99+2.49+1.99+0.99=$23.45

23.45x0.18=$4.22

23.45+4.22=$27.67

a surfer recorded the following values for how far the tide rose, in feet, up the beach over a 15-day period. 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 21, 22, 23, 24 which of the following histograms best represents the data collected?

Answers

The best histogram to represent the data collected by the surfer is a frequency polygon.

A frequency polygon is a line graph that shows the frequency distribution of a set of data points. It is used to compare the data points and identify any trends or patterns in the data.

The x-axis of the histogram represents the tide height in feet and the y-axis represents the frequency, or the number of days the tide rose to that level. As can be seen from the data provided, the tide height varied from 5-24 feet over the 15-day period, so this is the range of values that should be used for the x-axis. The frequency of each tide height is then calculated and plotted on the y-axis.

To create the frequency polygon, the first step is to create a frequency table. The next step is to plot the data points on the graph, connecting them with straight lines. The final step is to draw a line to connect the first and last data points.

The resulting frequency polygon is a good representation of the data because it clearly shows the range of tide heights over the 15-day period and the frequency of each height.

A frequency polygon histogram best represents the data collected by the for how far the tide rose, in feet, up the beach over a 15-day period.

Know more about histogram here:

https://brainly.com/question/2962546

#SPJ11

Answer:

Step-by-step explanation:

Answer is D I hope i helped

A drawing has a collection of 5-pointed stars and 9-pointed stars. There
are a total of 10 stars in the drawing with a total of 66 points. Which
matrix can be used to represent this system of linear equations to
determine the number of 5-pointed and 9-pointed stars used in the
drawing?
203 QUESTONS
15 91101
9 5166
1111101
s 9166
Web and Windows​

Answers

In the illustration, there are 2 9-point stars and 8 5-point stars.

Let x be the number of 5-pointed stars and y be the number of 9-pointed stars. Each 5-pointed star has 5 points and each 9-pointed star has 9 points, so the total number of points in the drawing is:

5x + 9y = 66

There are two variables in the equation, so we need another equation to solve for x and y. The problem states that there are a total of 10 stars in the drawing, so:

x + y = 10

We can represent this system of linear equations using a matrix:

[5 9] [x] [66]

[1 1] [y] = [10]

This is a matrix equation of the form Ax = b, where A is the coefficient matrix, x is the variable matrix, and b is the constant matrix. We can solve for x and y by finding the inverse of the coefficient matrix A:

A^-1 = 1/(5-9) [-9 5]

[ 1 -1]

Multiplying both sides by A^-1, we get:

x = A^-1 b

x = 1/(5-9) [-9 5] [66]

[1 -1] [10]

x = [-3 8]

Therefore, there are 8 5-pointed stars and 2 9-pointed stars in the drawing.

To learn more about system of linear equations refer to:

brainly.com/question/19549073

#SPJ4

Unit 4 Assessment- Geometry

Answers

The correct option is A. m∠X = 45° as the triangles ABC and XYZ are congruent.

What are congruent triangles

Congruent triangles are two triangles that have the same shape and size. In other words, if two triangles are congruent, then all their corresponding sides and angles are equal. Some methods that allow us to compare the lengths of corresponding sides and the measures of corresponding angles in the two triangles and determine whether they are equal includes: SSS (side-side-side), SAS (side-angle-side), ASA (angle-side-angle), AAS (angle-angle-side), or HL (hypotenuse-leg).

The angle m∠A corresponds to the angle m∠X given that the triangles ABC and XYZ are congruent.

In conclusion, the correct option for the congruent triangles is A. m∠X = 45°.

Know more about congruent triangles here:https://brainly.com/question/14285697

#SPJ1

A cake that is 12 inches long, 9 inches wide, and 2 inches high is cut into 18 equal pieces.
What is the volume of each piece?

Answers

Answer:

The volume of the cake is:

12 inches x 9 inches x 2 inches = 216 cubic inches

Dividing the volume of the cake by the number of pieces, we get:

216 cubic inches / 18 = 12 cubic inches per piece

Therefore, the volume of each piece is 12 cubic inches.

Answer:

12 inches cubed

Step-by-step explanation:

First we have to find the total volume so we can split it up. We can do this by using the formula LWD = V, where l = length, w = width, and d = depth.

Here, the length is 12, the height is 2, and the depth is 9. We apply the formula:

(12)(2)(9) = 216


Now, we have to split it into 18 separate pieces. We can do this by dividing the total volume (216 inches cubed) by 18.

216/18 = 12


Therefore, each equal piece will be 12 inches cubed

HELP URGENT
A 0.2 kg cue ball moving at 10 m/s hits a 0.15 kg 8 ball at rest. The cue ball continues rolling forward at 1 m/s. What is the velocity of the 8 ball?

Answers

Answer:

We can use the principle of conservation of momentum to solve this problem. According to this principle, the total momentum of a system of objects remains constant if there are no external forces acting on the system.

Initially, only the cue ball is moving, and the 8 ball is at rest. Therefore, the initial momentum of the system is:

p_initial = m1 * v1 + m2 * v2

= 0.2 kg * 10 m/s + 0.15 kg * 0 m/s

= 2 kg m/s

After the collision, the cue ball is rolling forward at 1 m/s, and the 8 ball is moving in some direction with some velocity v_final. Therefore, the final momentum of the system is:

p_final = m1 * v1 + m2 * v_final

According to the conservation of momentum principle, p_initial = p_final. Therefore,

2 kg m/s = 0.2 kg * 1 m/s + 0.15 kg * v_final

Solving for v_final, we get:

v_final = (2 kg m/s - 0.02 kg m/s) / 0.15 kg

= 13.33 m/s

Therefore, the velocity of the 8 ball after the collision is 13.33 m/s.

prove that if a sphere is inscribed in a right circular cylinder whose height is equal to the diameter of the sphere, then: (a) the volume of the cylinder is 3 2 the volume of the sphere. (b) the surface area of the cylinder, including its bases, is 3 2 the surface area of the sphere.

Answers

To prove these statements, we will use the formulas for the volume and surface area of a sphere and a cylinder.
The volume of a sphere is given by the formula V = 4/3 πr³, where r is the radius of the sphere.
The volume of a cylinder is given by the formula V = πr²h, where r is the radius of the base and h is the height of the cylinder.

(a) If a sphere is inscribed in a right circular cylinder whose height is equal to the diameter of the sphere, then the height of the cylinder is 2r and the radius of the base is r. Therefore, the volume of the cylinder is
V = πr²(2r) = 2πr³.
Now, we can compare the volume of the cylinder to the volume of the sphere:
V_cylinder/V_sphere = (2πr³)/(4/3 πr³) = (2/4)(3/1) = 3/2.
Therefore, the volume of the cylinder is 3/2 the volume of the sphere.
(b) The surface area of a sphere is given by the formula A = 4πr².
The surface area of a cylinder, including its bases, is given by the formula
A = 2πrh + 2πr², where r is the radius of the base and h is the height of the cylinder.
If a sphere is inscribed in a right circular cylinder whose height is equal to the diameter of the sphere, then the height of the cylinder is 2r and the radius of the base is r. Therefore, the surface area of the cylinder is
A = 2πr(2r) + 2πr² = 4πr² + 2πr² = 6πr².
Now, we can compare the surface area of the cylinder to the surface area of the sphere:
A_cylinder/A_sphere = (6πr²)/(4πr²) = (6/4) = 3/2.
Therefore, the surface area of the cylinder, including its bases, is 3/2 the surface area of the sphere.

To know more about volume and surface area refer here:

https://brainly.com/question/15585435

#SPJ11

Please ASAP Help
Will mark brainlest due at 12:00​

Answers

ANSWER: A

Since it’sBDC
You go from B to D THAN D to C. SO
BD->DC is the answer


Hope this helps

Find the value of b.

Answers

Answer:

d

Step-by-step explanation:

Answer:

Step-by-step explanation:

This is a geometric means problem. 6 is the altitude, which belongs to both of those smaller triangles; thus, it is the geometric means. We set up the proportion like this:

[tex]\frac{8}{6} =\frac{6}{b+3}[/tex] and we cross multiply to solve.

8(b + 3) = 36 and

8b + 24 = 36 and

8b = 12 so

b = 3/2 or 1.5

△A′B′C′ is the image of △ABC after dilation with scale factor 1/3. △A″B″C″ is the image of △A′B′C′ after dilation with scale factor 3/2. What is the scale factor of the dilation between △ABC and △A″B″C″?

Answers

On answering the provided question, we have got that As a result, the scale factor of the dilatation between triangle  ABC and A′′B′′C′′ is 1/2.

What precisely is a triangle?

An additional four or so parts make a triangle a polygon. Its shape is a simple rectangle. An edged rectangle with the letters ABC on it is known as a triangle. Euclidean geometry yields a single plane and cube when the sides are actually not collinear. Having three parts and three angles makes a triangle a polygon. The corners of a triangle are where the three edges meet. The sum of the angles of a triangle's sides is 180.

By multiplying the individual scale factors of the two dilations, we can determine the scale factor of the dilation between ABC and A′′B′′C.

Each side of ABC is scaled down by a factor of 1/3 in the first dilation with a scale factor of 3. Thus, the corresponding sides of A, B, and C are a third the length of corresponding s of ABC.

In the second dilation, each side of "A" through "C" is scaled up by a factor of 3/2. As a result, the corresponding sides of A′′B′′C′′ are 3/2 times longer than those of A′B′C′.

1/3 × 3/2 = 1/2

As a result, the scale factor of the dilatation between ABC and A′′B′′C′′ is 1/2.

To know more about triangle visit:

https://brainly.com/question/2773823

#SPJ1

How do you find the surface area of this cone

Answers

Answer: 9.42477796077 square yards

Step-by-step explanation:

Cone Surface Area Calculation

surface area of cone slant height is 2 radius is 1

To find the surface area of a cone, we need to know the radius and slant height of the cone.

In this case, we are given that the radius (r) is 1, and the slant height (l) is 2. We can use the Pythagorean theorem to find the height (h) of the cone:

l^2 = r^2 + h^2

2^2 = 1^2 + h^2

4 = 1 + h^2

h^2 = 3

h = sqrt(3)

Now we can use the formula for the surface area of a cone:

A = πr^2 + πrl

Substituting the values we know:

A = π(1)^2 + π(1)(2)

A = π + 2π

A = 3π

So the surface area of the cone is 3π

3 times Pi = 9.42477796077

ChatGPT

.

You deposit $200 in a bank account. Each year, the amount in your bank account increases 5% due to interest. What is the total in your bank account after 1 year?

Answers

Answer:

After one year, the amount in the bank account will be:

$200 + ($200 x 0.05) = $200 + $10 = $210.

Therefore, the total in the bank account after 1 year is $210.

someone help me please :c

Answers

I think is it 90 degrees

The surface area of this rectangular prism is 76 square centimeters. What is the volume?

Answers

I think the volume is 5

pls answer thiss

give ismple working out

Answers

The third term of the arithmetic sequence presented is given as follows:

14.

What is an arithmetic sequence?

An arithmetic sequence is a sequence of numbers in which each term is obtained by adding a constant value, called the common difference (d), to the previous term.

From the sequence in this problem, the terms are given as follows:

First term of 22.Second term of 18.Third term of 14.Fourth term of 10, and so on...

More can be learned about arithmetic sequences at https://brainly.com/question/6561461

#SPJ1

Find m angle1 and m angle2

Answers

Answer:

M<1 would be 79 and M<2 would be 101

Step-by-step explanation:

is f(x)= -x+36 a real root?

Answers

The only value of x for which f(x) = 0 is x = 36. So, f(x) = -x + 36 does not have a real root, since there is no value of x that makes the function equal to zero.

What is a function ?

A function is a mathematical concept that describes the relationship between a set of inputs (domain) and a set of outputs (range), such that each input has a unique output. In other words, it is a rule that assigns to each input exactly one output.

A real root of a function refers to a value of x for which the value of the function is equal to zero. So, to determine whether f(x) = -x + 36 has a real root, we need to find the value(s) of x for which f(x) = 0.

Setting f(x) = 0, we have:

-x + 36 = 0

Adding x to both sides, we get:

36 = x

Therefore, the only value of x for which f(x) = 0 is x = 36. So, f(x) = -x + 36 does not have a real root, since there is no value of x that makes the function equal to zero.

To learn more about Function from given link.

https://brainly.com/question/12431044

#SPJ1

producto 0 de g(x)=(-5x-1)(2x+8)

Answers

The product of two binomials is the result of multiplying each term from the first binomial by each term from the second binomial. The product of the two binomials, (-5x-1) and (2x+8), is[tex]0x^2+(-10x-2x)+(-8x-8)[/tex] which simplifies to -18x-10.

To calculate the product of the two binomials, we multiply the coefficients of each term together and add the exponents of the same base together. The coefficients of the first binomial, -5x and -1, are multiplied together to give a coefficient of -5. The exponents of x, 1 and 0, are added together, giving an exponent of 1. Thus, the first term is[tex]-5x^1[/tex]. The coefficients of the second binomial, 2x and 8, are multiplied together to give a coefficient of 16. The exponents of x, 1 and 0, are added together, giving an exponent of 1. Thus, the second term is[tex]16x^1[/tex].The last terms, -1 and 8, are multiplied together to give a coefficient of -8. The exponents of x, 0 and 0, are added together, giving an exponent of 0. Thus, the third term is[tex]-8x^0[/tex], which simplifies to -8.When all the terms are combined, the product of the two binomials, (-5x-1) and (2x+8), is -18x-10.

Learn more about binomials here:

https://brainly.com/question/28983916

#SPJ1

The headlights of an automobile are set such that the beam drops 2. 00 in. For each 20. 0 ft in front of the car. What is the angle between the beam and the​ road?


The angle between the beam and the road is. ​_____(Round to one decimal place as​ needed. )

Answers

The angle between the beam and the road is equal to 5.71°.

A headlamp is a lamp that is mounted on the front of a car to light the way. Although headlights and headlamps are frequently used interchangeably, in the most formal sense, headlight refers to the device's beam of light and headlamp to the device itself.

We given that :- h= 2inch and r= 20.0feets.

where, h is beam drops and r is the headlights distance.

To find the angle between the beam and the road we have to use the equation:-

tan theta = [tex]\frac{h}{r} = \frac{2 inch}{20.0 ft} = \frac{1}{10} = 0.1[/tex]

Calculating tan theta to find theta which is an angle between the beam and the road.

Theta= [tex]tan^{-1} (0.1)= 5.71[/tex]

hence, the angle between the beam and the road is 5.71 degree.

To know more about angle go through:-

https://brainly.com/question/25716982

#SPJ1

The table of values represents a quadratic function f(x).


x f(x)
−8 7
−7 2
−6 −1
−5 −2
−4 −1
−3 2
−2 7
−1 14
0 23

What is the equation of f(x)?
f(x) = (x − 5)2 − 2
f(x) = (x − 4)2 − 1
f(x) = (x + 4)2 − 1
f(x) = (x + 5)2 − 2

Answers

The equation of the quadratic function is f(x) = (x + 5)² - 2

Define quadratic function?

A quadratic function is a second-degree polynomial function of one variable, which can be written in the form f(x) = ax^2 + bx + c, where a, b, and c are constants and x is the variable.

From the question, we have the table of values which represents a quadratic function f(x).

A quadratic equation is represented as

f(x) = a(x - h)² + k

Where, Vertex = (h, k)

If we plot the graph according to the given table, the vertex will be,

(h, k) = (-5, -2)

Substitute, (h, k) = (-5, -2) in f(x) = a(x - h)² + k

So, we have, f(x) = a(x + 5)² - 2

Also, from the graph, we have the point (0, 23)

This means that

a(0 + 5)² - 2 = 23

25a = 25

a = 1

Substitute a = 1 in f(x) = a(x + 5)² - 2

f(x) = (x + 5)² - 2

Hence, the equation is f(x) = (x + 5)² - 2

To know more about polynomial, visit:

https://brainly.com/question/1496352

#SPJ1

The population of a town increased from 3,900 people in the year 2007 to 6,200 people in 2009. Find the
absolute change and determine by what percent (relative change) the population increased.
Absolute change:
people
Percent increase (relative change):
(relative
Round to the nearest tenth of a percent and don't forget to include a percent sign, %, in your answer.
Question Help:
Video
Submit Question

Answers

Answer:

To find the absolute change in population from 2007 to 2009, we can subtract the initial population in 2007 from the final population in 2009:

Absolute change = Final population - Initial population

= 6,200 - 3,900

= 2,300 people

Therefore, the absolute change in population from 2007 to 2009 is 2,300 people.

To find the percent increase (relative change) in population, we can use the formula:

Percent increase = (Absolute change / Initial population) x 100%

Substituting the values given in the problem, we get:

Percent increase = (2,300 / 3,900) x 100%

= 58.97%

Therefore, the population increased by approximately 58.97% from 2007 to 2009. Rounded to the nearest tenth of a percent, the percent increase is 59.0%.

PLEASE HELP!!!!

All I need to know is the area.

Answers

Answer:

A = 45 units²

Step-by-step explanation:

the lined figure is composed of a rectangle and a triangle

area of rectangle WFSC is calculated as

area = length × width

       = FW × WC

      = 2 × 9

     = 18 units²

the area of Δ is calculated as

area = [tex]\frac{1}{2}[/tex] base × perpendicular height

       = [tex]\frac{1}{2}[/tex] × FS × perpendicular length from N to base FS

       = [tex]\frac{1}{2}[/tex] × 9 × 6

      = 4.5 × 6

      = 27 units²

total area (A) is then the sum of the 2 figures , that is

A = 18 + 27 = 45 units²

Calculate the correlation coefficient of the following data:
X
1
4
8
6
2
y
9
16
22
24
12

Answers

Answer:

0.177

Step-by-step explanation:

A perfect correlation is 1. So .998 or even .863 is a good correlation.

since our decimal isn't close to that at all, we have a weak positive correlation.

A sports memorabilia store makes $6 profit on each football it sells and $5.50 profit on each baseball it sells. In a typical month, it sells between 35 and 45 footballs and between 40 and 55 baseballs. The store can stock no more than 80 balls total during a single month. What is the maximum profit the store can make from selling footballs and baseballs in a typical month?
$457.50
$460.00
$462.50
$572.50

Answers

Answer:  C $462.50

Step-by-step explanation:

It's $462.50 because since $6 has a higher profit you would want to try and sell more of that product (The football). So $6 times 45 is 270. And the max number of balls the store can have is 80, 80 minus 45 is 35 so there can only 35 baseballs left. 35 times $5.50 is 192.50. Lastly, you add the two products, and you get 462.50.

The maximum profit the store can make from selling footballs and baseballs in a typical month is $462.50.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example: so

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

Let's say the store sells x footballs and y baseballs.

The total number of balls sold can be expressed as x + y ≤ 80.

Also, we know that 35 ≤ x ≤ 45 and 40 ≤ y ≤ 55.

To maximize the profit, the store should sell the maximum number of footballs and baseballs that it can stock.

From the constraints, we see that the maximum number of footballs the store can sell is 45 and the maximum number of baseballs it can sell is 55, which together make a total of 100 balls.

However, this exceeds the 80-ball limit, so we need to adjust the numbers.

Let's say the store sells 45 footballs and y baseballs.

Then, y ≤ 35 since 45 + 35 = 80, which is the maximum number of balls the store can stock.

Similarly, let's say the store sells x footballs and 55 baseballs.

Then, x ≤ 25 since 25 + 55 = 80.

To find the maximum profit, we need to calculate the profit from selling 45 footballs and 35 baseballs, which will give the highest profit among the feasible combinations.

The profit from selling 45 footballs is 45 × $6 = $270.

The profit from selling 35 baseballs is 35 × $5.50 = $192.50.

The total profit is $270 + $192.50 = $462.50.

Therefore,

The maximum profit the store can make from selling footballs and baseballs in a typical month is $462.50.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ5

I need help with this.

Answers

According to the information, the scale that you would use for the pictogram would be 10 for each symbol.

Which scale is the best for the pictogram on the table?

To choose the most appropriate pictogram for the information in the table, we must take the data into account. In this case, we must find a divisor number of all the numbers to take it as the value of the scale. In this case we can take 10, because it divides all the numbers as shown below:

80 / 10 = 840 / 10 = 470 / 10 = 760 / 10 = 6

According to the above, 8 sports symbols, 4 reading symbols, 7 game symbols and 6 music symbols should be used to represent the values, taking into account that each symbol is equal to 10 units.

Learn more about pictograph in: https://brainly.com/question/768035

#SPJ1

Question
A small movie theater is arranged with 10 seats in the front row, 15 seats in the middle row, and 20 seats in the back row. The customers randomly pick seats as they enter the theater.

What is the probability that the first customer who enters the theater will sit a seat in the back row?
i need this in a fraction please.

Answers

The probability that the first customer will sit in a seat in the back row is 4/9.

What is customer ?

A customer is a person or business that buys goods or services from another business.

There are a total of 45 seats in the theater. Out of those, 20 seats are in the back row.

So the probability that the first customer who enters the theater will sit in a seat in the back row is:

P(back row) = 20/45

Simplifying the fraction gives:

P(back row) = 4/9

Therefore, the probability that the first customer will sit in a seat in the back row is 4/9.

Learn more about fraction here : brainly.com/question/28699958

#SPJ1

Other Questions
A scale model of a building has a scale of 3 : 74The height of the real building is 21 m.Find the height of the scale model. Give your answer in cm to 2 dp. need this ASAP Short run cost structure and production decisions of Joe's Barbershop Assume a perfectly competitive market; the point of this exercise is to decide how much should Joe produce of barbering services when the market price is as the following questions propose. (Use textbook jargon and explain the typical actions of the firm.) Complete all parts to this assignment and answer all questions. To understand how costs must be considered in the operation of a firm in the short run, (0) Complete the cost structure table on the next page: (11) Initially assuming a price of $4.00 construct a graph showing the total cost, total variable cost, and a revenue; identify breakeven quantity; (HT) Continuing to assume a price of $4.00 construct a graph showing the average fixed cost, average variable cost, average total cost, marginal cost, and a price line; Identity breakeven quantity, (iv) Complete analysis at four different price levels; explain whether or not a firm would produce (and at what level, with what consequence) and when it would shut down-depending on which of four different prices were occurring in the market for the good. The analysis should include an explanation of how the perfectly competitive firm comes to a decision as to what production quantity maximizes profits or minimizes losses. The "consequence would be related to whether profits, losses, entry of rivals, or exit of existing firms would occur- In the short run and in the long run. A. At a price equal to $4.00? Explain your decision. B. At a price equal to $3.007 Explain your decision. C. At a price equal to $2.00? Explain your decision D. At a price equal to $1.00? Explain your decision ECON 1 WEEK 3 WRITTEN ASSIGNMENT 3: Cost & Production Total TOCM Toel TORNI Pron Pront VC TG ARC AVE ATC MC 12 Prett 52 pro 011 $ 20 $ $ . X X 2 10 10 20 20 15 20 12 20 13 50 20 80 20 20 50 70 0 $0 30 117 20 148 20 100 IR Animal shelters in a county need at least 15% of their animals to be adopted weekly to have room for the new animals that are brought into the various shelters. The county manager takes a random sample of shelters each week to estimate the overall proportion of animals that are adopted. If he concludes that the proportion has dropped below 15%, he will not accept any new animals into the shelters that week. He tests the hypotheses: H0: The adoption rate is 15%, and Ha: The adoption rate is less than 15%. What is a Type I error, and what is its consequence in this context?The manager believes the adoption rate is still 15%, when it actually has dropped below 15%. The manager will accept more animals into the shelters and will run out of room.The manager believes the adoption rate has dropped below 15%, when it actually has not. The manager will accept more animals into the shelters and will run out of room.The manager believes the adoption rate has dropped below 15%, when it actually has not. The manager will not accept more animals into the shelters, when there actually is room to care for those animals.The manager believes the adoption rate is still 15%, when it actually has dropped below 15%. The manager will not accept some animals into the shelters, thinking there will not be enough room, when they could have taken care of those animals.answer c 1/3(9k+12)=15 help with the explanation curved surface area of a cone =slantsurface area of a sphereTrl, where r is the radius and 1 is theheight.472, where r is the radius.A sphere and a cone are shown below.The surface area of the sphere is the same as the curved surface area ofthe cone.Work out the slant height of the cone.If your answer is a decimal, give it to 1 d.p.16 m10 m a hospital director is told that 32% 32 % of the treated patients are uninsured. the director wants to test the claim that the percentage of uninsured patients is under the expected percentage. a sample of 160 160 patients found that 40 40 were uninsured. find the value of the test statistic. round your answer to two decimal places. Answer this correctly please Can someone please help with this chemistry question Two charges each 2 x 10-7 C but opposite in sign forms a system. These charges are located at points A (0,0, -10) cm and B(0,0, +10) cm respectively. What is the total charge and electric dipole moment of the system? 1. What is the percent by volume of a solution formed by mixing 349 mL of isopropanol with 380mL of water?2. What is the mass of a solute in a solution with 65% (m/m) of a solute and a mass of the solution is 327. 0g?3. Calculate the molarity of 171g of KBr dissolved in 829. 0 mL pure water Which of these is NOT a common text structure? cause-and-effect compare and contrast chronological order informational article decomposition of ozone to oxygen occurs as a series of radical reactions. the individual reactions in this series are listed below but they are not in the correct order. use the labels on the right to correct the order of the reactions. Over the last decade the distinction between goods andservicesa. has become fuzzier due to increased digitalization (i.e., ithas become more of a continuum than a clear dichotomy).b. has become clearer (i.e., there is a clear dichotomy).c. has become fuzzier due to increased globalization (i.e., it has become more of a continuum than a clear dichotomy). If consumer confidence decreases then aggregate demand willincrease and output and price level will increase as well.decrease and output and price level will decrease as well.increase and output will increase but price level will decrease.increase and output will decrease but price level will increase.decrease and output will decrease but price level will increase. Carly picked m mangoesa) On Monday, she added 4 mangoes to what she picked and shared the total equally into 2 groups. Write an expression to represent the number of mangoes in each group.b) On Tuesday, she had twice the number of mangoes picked then added 2 more mangoes. If she shared this total into 3 equal groups, write an expression to represent the number of mangoes ineach group.c) If Carly subtracted the number of mangoes in each group on Tuesday from the number of mangoes in each group on Monday, she will have 3 mangoes left Write an equation to representthis information.d) Hence, calculate the number of mangoes she picked. PLEAASE HELP ME NEED IT RN what is vidual culture? what does it mean to perceive our visual culture A family has a large sand castle mold in the shape of a swuare puramid the distance from the ase to the apex the mold is 5feet and one of the edges of the base of the mold is 3 feet. How much sand does the family need to fill the mold completlt thankyou for the RIGHT answer You want to determine the savings for using a battery that can be recharged. The battery costs 16 dollars. You save 14 dollars each time you recharge the battery. Represent the cost of the rechargeable battery as a negative number and savings as a positive number