are the ratios 1:4 and 3:5 equivalent

Answer:

Area of the shaded region is 53.47 square yd

Considering the definition of an equation and the way to solve it, the number of miles in a day at which the rental costs for Company A and Company B are the same is 200.

An equation is the equality existing between two algebraic expressions connected through the equals sign in which one or more unknown values, called unknowns, appear.

The members of an equation are each of the expressions that appear on both sides of the equal sign.

The solution of a equation means determining the value that satisfies it. To solve an equation, keep in mind:

First, you define the variable "m" as the number of miles rented from a truck to a company in a day. You know that:

So the price of each company is:

If the rental costs for Company A and Company B are the same, the equation in this case is:

Price of company A= Price of company B

130 + 0.30m= 70 + 0.60m

Solving:

130 - 70= 0.60m - 0.30m

60= 0.30m

60÷0.30= m

200= m

In summary, the number of miles in a day at which the rental costs for Company A and Company B are the same is 200.

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Answer:

1100000

Step-by-step explanation: If x = 300,000, that means 2x is 2 x 300,000, and that makes the equation 500,000 + ( 2 x 300,00). Please don't judge me, I am only in 7th grade. Thank you.

The polynomial expression for the profit from making and selling x model kits is 28x - 500,000 - 0.00005 x² and the profit is 3400000.

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]

It is given that:

Suppose the cost in dollars of producing x model kits is given by the polynomial 500,000 + 2x and the revenue generated from sales is given by the polynomial 30x - 0.00005 x².

The profit = revenue - cost

The profit = (30x - 0.00005 x²) - (500,000 + 2x)

The profit = 30x - 0.00005 x² - 500,000 - 2x

The profit = 28x - 500,000 - 0.00005 x²

Plug x = 300,000 in the profit expression.

The profit = 3400000

Thus, the polynomial expression for the profit from making and selling x model kits is 28x - 500,000 - 0.00005 x² and the profit is 3400000.

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Answer:

-2/3

Step-by-step explanation:

(x1, y1) = (4, 1)

(x2, y2) = (1, 3)

m = (y2 - y1) / (x2 - x1) = (3 - 1) / (1 - 4) = 2 / (-3) = -2/3

Note that we used the point with the bigger x as the "first" point. It does not change the result.

Answer:

its at simplest form

Step-by-step explanation:

Answer:

6x + 9 = 75

explantion : in the photo just writing this so brainly could let me post the picture but here you go

Answer: svsdvcvsdvsdvsdv

vdsvds

Step-by-step explanation:

ght 4.8 pounds of chocolate covered almonds and 3.7 pounds of yogurt covered almonds how much did he spend

Answer:

43.6

Step-by-step explanation:

Using the normal distribution, the standard deviation of bone density in the reference population is of 5.52 g/cm².

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

For this problem, the parameters are given as follows:

[tex]X = 948, z = -1.45, \mu = 956[/tex]

Hence we solve for [tex]\sigma[/tex] to find the z-score as follows:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]-1.45 = \frac{948 - 956}{\sigma}[/tex]

[tex]-1.45\sigma = -8[/tex]

[tex]\sigma = \frac{8}{1.45}[/tex]

[tex]\sigma = 5.52[/tex]

The standard deviation of bone density in the reference population is of 5.52 g/cm².

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Relationships that have a uniform or constant rate are said to be proportional relationships. Because it does not employ a uniform rate, the price of food does not follow a proportional connection.

The missing table looks like this:

Bag     cost

0           0

5          17.5

30        89

First, we calculate the slope (m) of the table using:

(x₁ y₁) = (0,0)

(x₂ y₂) = (5,17.5)

m₁=(y₂-y₁)/(x₂ -x₁)

m₁=(17.5-0)/(5-0)

m₁=3.5

The slope for the following points

(x₁ y₁) = (0,0)

(x₂ y₂) = (30,89)

m₂=(y₂-y₁)/(x₂ -x₁)

m₂=(89-0)/(30-0)

m₂=2.97

3.5 ≠2.97

Hence, the cost of food is not a proportional relationship because it does not use a uniform rate.

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Answer:

|60| = |-60|

Step-by-step explanation:

Now the value of,

→ |60| = 60

→ |-60| = 60

Then the sign will be,

→ |60| = |-60|

→ 60 = 60

Hence, the sign is (=).

Using translation concepts, the coordinates of the image of the triangle are given as follows:

A'(-1,-4), B'(-2,0), C'(-3, -11).

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s definition or in it’s domain. Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis.

The rule for a 90° counterclockwise rotation about the origin is given as follows:

(x,y) -> (-y,x).

Hence the coordinates of the image of the triangle are given as follows:

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Answer:

D

Step-by-step explanation:

x>10 is your answer. since theres no less than or greater or equal to c and B are automatically out. x>10 says x is greater then 10 so it is D

Its B, always remember to check if the dot is opened or closed on the line!!

Answer:

y = -5/3x + 1

Step-by-step explanation:

as the photo saying

The calculated vectors are:

[tex]\vec{A}-\vec{B}[/tex]=(3,-5,-4)

[tex]\vec{B}-\vec{C}[/tex]=(-5,4,0)

[tex]-\vec{A}+\vec{B}-\vec{C}[/tex]=(-6,4,3)

[tex]3 \vec{A}-2 \vec{C}[/tex]=(-3,-2,-11)

Generally, the equation for is  mathematically given a

[tex]\vec{V}+\vec{W}=\left(V_1, V_2, V_3\right)+\left(W_1, W_2, W_3\right)\\\\\vec{V}+\vec{W}=\left(V_1+W_1, V_2+W_2, V_3+W_3\right) \text { }[/tex]

[tex]\vec{V}-\vec{W}=\left(V_1, V_2, V_3\right)-\left(W_1, W_2, W_3\right)\\\\\vec{V}-\vec{W}=\left(V_1-W_1, V_2-W_2, V_3-W_3\right)[/tex]

[tex]\alpha \cdot \vec{V}=\alpha \cdot\left(V_1, V_2, V_3\right)\\\\\alpha \cdot \vec{V}=\left(\alpha \cdot V_1, \alpha \cdot V_2, \alpha \cdot V_3\right)[/tex]

[tex]\vec{A}-\vec{B}=(1,0,-3)-(-2,5,1)\\\vec{A}-\vec{B}=(3,-5,-4) \\\\&\vec{B}-\vec{C}=(-2,5,1)-(3,1,1)\\&\vec{B}-\vec{C}=(-5,4,0) \\\\&-\vec{A}+\vec{B}-\vec{C}=-(1,0,-3)+(-2,5,1)-(3,1,1)\\-\vec{A}+\vec{B}-\vec{C}=(-6,4,3) \\\\&3 \vec{A}-2 \vec{C}=3(1,0,-3)-2(3,1,1)\\3 \vec{A}-2 \vec{C}=(3,0,-9)-(6,2,2)\\3 \vec{A}-2 \vec{C}=(-3,-2,-11)[/tex]

In conclusion,

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CQ

In general it is best to conceptualize vectors as arrows in space, and then to make calculations with them using their components. (You must first specify a coordinate system in order to find the components of each arrow.) This problem gives you some practice with the components. Let vectors A rightarrow = (1,0, -3), rightarrow = (-2,5,1), and C rightarrow = (3,1,1). Calculate the following, and express your answers as ordered triplets of values separated by commas.

Answer:

14

Step-by-step explanation:

Let x = number of rides.

Tony's cost: 4.5x + 25

Ride's cost: 5x + 18

Set the prices equal and solve for x.

5x + 18 = 4.5x + 25

Subtract 4.5x from both sides.

0.5x + 18 = 25

Subtract 18 from both sides.

0.5x = 7

Multiply both sides by 2.

x = 14

Answer: 14

1........answe is 1............

Answer: The answer is 2 1/12

Step-by-step explanation:

Answer:

A= 3. 5 u=7 t=0.5

Step-by-step explanation:

It will be 8.75

The lengths of the three sides of the triangular lot are: 100 feet, 200 feet and 400 feet.

What is a triangle and its perimeter?

A triangle is a polygon with three edges and three vertices.

Given:

To find: All the sides of the triangular lot.

FInding:

Let the shortest side of the triangular lot be 'x'.

Then, according to the question, one side of the triangular lot = 100 + x and other = 300 + x

As perimeter of a triangle = sum of all the sides,

=> 1300 = x + 100 + x + 300 + x

=> 1300 - 400 = 3x

=> 900 = 3x

=> 300 = x

Hence, the shortest side = 100 feet, a longer side = 200 feet, the longest side = 400 feet for the given triangular lot.

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If two marbles are randomly chosen from the bag contains 22 yellow marbles and 11 teal marbles, then the probability that the both marbles are teal is [tex]\frac{10}{99}[/tex]

Given,

The number of yellow marbles = 22

Number of teal marbles = 11

Total number of marbles = 22+11= 33 marbles

Then two marbles are chosen randomly

We know,

The probability = Number of favorable outcomes/ Total outcomes

Probability that first marble is teal =[tex]\frac{11}{33}[/tex]=[tex]\frac{1}{3}[/tex]

Probability that second marble is teal =[tex]\frac{10}{33}[/tex]

Here we are considering without replacement

Then the probability that both marbles are teal = [tex](\frac{1}{3})(\frac{10}{33})=\frac{10}{99}[/tex]

Hence, if two marbles are randomly chosen from the bag contains 22 yellow marbles and 11 teal marbles, then the probability that the both marbles are teal is [tex]\frac{10}{99}[/tex]

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The length of the side of the cube is 100 centimeters

The formula for volume of a cube is expressed as:

Volume, V = a³

Where a is the length of its side

Given that the volume is 1 million cubic centimeters = 1, 000, 000

Substitute the values

1, 000, 000 = a³

Find the cube root of both sides

a = ∛10^6

a = 100 centimeters

Thus, the length of the side of the cube is 100 centimeters

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The percentage by which the price of the shirt is decreased is 20%.

So, the price of a shirt is marked down from $12.50 to $10.00.

Then,

Now, the shirt's percentage has decreased:
(Change in price)/(Previous price) ×100

Therefore, the percentage by which the price of the shirt is decreased is 20%.

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Answer:

Let's solve your equation step-by-step.

−5(|x+1|)+2=12

Step 1: Add -2 to both sides.

−5(|x+1|)+2+−2=12+−2

−5(|x+1|)=10

Step 2: Divide both sides by -5.

−5(|x+1|)

−5

=

10

−5

|x+1|=−2

Step 3: Solve Absolute Value.

|x+1|=−2

No solutions. (Absolute value cannot be less than 0.)

Step-by-step explanation:

Based on the numbers being divided, the number of significant digits that the quotient should have is 4 significant digits.

The number of significant digits from a quotient where numbers divided each other should be the significant digits in the number with the smaller number of significant digits.

The number with the lower significant digits here is 2.058 × 10^9.

In this number, there are 4 significant digits because 0 is between non zero numbers.

The quotient would therefore have 4 significant digits.

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Deducted from her paycheck this week for Social Security is $31.13.Medicare is equal to $7.28.

Maria Wehstone, Gross weekly income = 502.16 and annual earnigs till date = 20,086.40

Deduction for this week for social security = 6.20% of 502.16$ = $31.13

Deduction for this week for Medicare = 1.45% of 502.16$ = $7.28

Social security is the safety net that a society offers to people and families to ensure that they have access to health care and to assure financial stability, particularly in circumstances of old age, unemployment, illness, invalidity, work injuries, maternity, or the death of a primary earner.

Based on their career earnings, Social Security replaces a portion of your pre-retirement income. Depending on how much you earn and when you decide to begin receiving benefits, Social Security replaces a different percentage of your pre-retirement income depending on your top 35 years of earnings.

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If f is differentiable on a closed interval [a,b] and if f' is continuous on the interval [a,b], Then f is Lipschitz on [a,b].

What is a Lipschitz function?

Now,

Hence, If f is differentiable on a closed interval [a,b] and if f' is continuous on the interval [a,b], Then f is Lipschitz on [a,b].

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Hannah had run 6 complete laps and is running the 7th lap when she surpasses the athlete Kara.

An athlete (sometimes known as a sportsman or sportswoman) is a person who participates in one or more sports that require physical stamina, speed, or strength.

Professional and amateur athletes both exist. The majority of elite athletes have extremely well-developed bodies because to rigorous physical training, stringent exercise, and a tight food regimen.

Isotonic exercisers had a greater mean left ventricular end-diastolic capacity and are less prone to experience depression. Athletes are far more prone than the general public to go to massage parlors and pay for the services of massotherapists and masseurs due to their demanding physical activity. Athletes whose sport favors endurance over strength typically consume less calories than other athletes.

Calculations:

Total length of the race (L) = 5000 m

Time taken by Kara (tk) = 17.9 min = 1074 s

Kara's speed (vk) = L/tk = 5000/1074 m/s

Time taken by Hannah (th) = 15.3 min = 918 s

Hannah's speed (vh) = L/th = 5000/918 m/s

Let the number of laps Hannah had run when she passes Kara be n

Distance travelled by Hannah in this time = n*400 = 400n meters

Time taken by Hannah to run n laps = 400n/(5000/918)=367200n/5000=73.44n

Distance travelled by Kara in this time = (n-1)*400 = 400n - 400 meters

Time taken by Kara to run (n-1) laps = (400n-400)/(5000*1074)=(429600n-429600)/5000=85.92n-85.92

= 85.92n - 85.92 = 73.44n

= 12.48n = 85.92

= n = 6.88

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Answer:

it's B

Step-by-step explanation:

after a long section it is B