Solve The Quadratic Equation by the Square Root Method.
(x + 2)^2=25
Answer:
x=-7, x=3
Step-by-step explanation:
Seperate into possible cases
Solve the equation
Answer:
x = 3 or x = -7
Step-by-step explanation:
(x + 2)^2=25
Take the square root of each side
sqrt((x + 2)^2)=sqrt(25)
x+2 = ± 5
Subtract 2 from each side
x+2-2 = -2 ±5
x = -2 +5 or x = -2 -5
x = 3 or x = -7
find the perimeter of these figures *
please*
Answer:
The perimeter of figure a is 44 inches, the perimeter of figure b is 72 inches.
Step-by-step explanation:
The sides of figure a is 8; 2; 3; 12; 2; 12; 3; 2, to get the perimeter, add all the sides together, which will be 8 + 2 * 2 + 3 * 2 + 12 * 2 = 8 + 4 + 6 + 24 = 12 + 30 = 42 inches. The sides of figure b is 3; 3; 3; 3; 13; 13; 5; 5; 5; 5; 7; 7, to get the perimeter, add all the sides together, which will be 3 * 4 + 13 * 2 + 5 * 4 + 7 * 2 = 12 + 26 + 20 + 14 = 32 + 40 = 72 inches.
Answer:
a) 44
2 + 8 + 2 + 8 + 12 + 12 = 44
b) 72
13 + 13 + 3 +3 +3 +3 +5 +5 +5 +5 +7 +7 = 72
Step-by-step explanation:
For which function k does the output increase by 20% every time the input increases by 1?
Answer:
k(x) = 1.20^x
Step-by-step explanation:
Here, we want to get a function
The output in this case refers to k(x)
the input refers to the value x
So, for every 1 increase in x, we want k(x) to increase by 20%
20% is same as 20/100 = 0.2
So at an initial value of 1, each increase if 20% will be 0.2 + 1 = 1.2
So therefore, we have the function as;
k(x) = 1.20^x
Hi if you answer please explain how you got the answer thanks! :)
Answer:
B: 60,000
Step-by-step explanation:
Since there was a total of 200,000 votes, we can create this equation, since we also know the ratio between the two candidates:
7x + 3x = 200,000
x can be seen as a common factor between the two candidates that can be used to express their difference
We can now further simplify this equation by combining like terms and solving for x:
10x = 200,000
x = 200,000/10
x = 20,000
Now, to find the total number of votes cast for Bob Tanks, we multiply x by 3, since it says that Julie Sanders won by a ratio of 7:3, which means she had 7 in the ratio and Bob had the 3.
3x = 3(20,000) = 60,000
The answer is B: 60,000.
Answer: 60,000
Step-by-step explanation:
The easiest way to solve this problem is to use equations
Since we know the ratio of Julie's votes to Bob's votes is 7:3 and the total is 200,000 we can use this equation 200,000 (number of votes) = 7x(Julie's votes) + 3x(Bob's votes)
After you solve it you get x=20,000
Then,
You put that back into Bob's votes and you get 60,00
Hope this helps :)
Which statement is true about all cylinders?
The height is a vertical distance
The diameter of a base is less than the height.
The radii of both bases are the same.
The area of a base is greater than 1 square unit.
Answer:
C. The radii of both bases are the same.
Step-by-step explanation:
Jesse has a storage container in the shape of a right rectangular prism. The volume of the container is 43.875 cubic meters, the length is 5 meters and the width is 3.9 meters.
Note: Consider we need to find the height of the container.
Given:
The volume of container in the shape of right rectangular prism = 43.875 cubic meters.
Length = 5 meters.
Width = 3.9 meters.
To find:
The height of the container.
Solution:
We know that the volume of a rectangular prism is:
[tex]V=l\times w\times h[/tex]
Where, l is length, w is width and h is height.
Putting [tex]V=43.875,l=5,w=3.9[/tex] in the above formula, we get
[tex]43.875=5\times 3.9\times h[/tex]
[tex]43.875=19.5\times h[/tex]
[tex]\dfrac{43.875}{19.5}=h[/tex]
[tex]2.25=h[/tex]
Therefore, the height of the rectangular container is 2.25 meters.
karrie was late to work 14 times last year if she worked 250 days last year what percent of the days were she late
2) What x value makes the exponential function greater than the
quadratic function?
A)X = -2
B)x = 0
X = 2
D) =4
Answer:
The answer is b
Step-by-step explanation:
X= 0 makes the exponential function greater than the quadratic function. Therefore, the correct option is option B.
What is exponential function?The mathematical symbol for the exponent is [tex]e^{X}[/tex]. The word, unless specifically stated differently, generally relates to the positive-valued functional of something like a real variable, though it can be extended towards the complex numbers or adapted to other mathematical like matrices or Lie algebras.
The idea of exponentiation is where the exponential function got its start, although recent definitions allow for a rigorous extension to all real arguments, especially irrational values. X= 0 makes the exponential function greater than the quadratic function.
Therefore, the correct option is option B.
To know more about exponential function, here:
https://brainly.com/question/17246770
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HELP ASAP!!!!
The histogram below shows the estimated monthly salaries of company employees with different years of experience.
Estimated Monthly Salary
Simsed Monthly
San Years of experience
What is the estimated monthly salary for people with 16-18 years experience?
$5,500
$3,000
$5,000
$4,000
Answer:
(A) The scale on the y-axis overemphasizes the difference in salaries between different experience levels.
Step-by-step explanation
yes
The estimated monthly salary for people with 16-18 years of experience is $4000.
What is the mean salary?A histogram is used to represent data graphically using rectangular bars. In this histogram, the mean salary is on the y-axis and the years of experience is on the x axis.
Tracing the rectangular bar that represents 16 - 18 years of experience to the y-axis, it can be seen that the mean salary is $4000.
Please find attached the image used to answer this question. To learn more about histograms, please check: https://brainly.com/question/14473126
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If at most 5 students can sit at a table, what is the minimum number of tables needed to seat 33 students
Answer:
7 kids minimum.
Step-by-step explanation:
33 devided by 5 is 6 remainder 3. You can't have 3 kids not sitting. so you add another table.
In a normal distribution, 99.7% of the data fall within how many standard
deviations of the mean?
A. Two standard deviations
B. One standard deviation
C. It cannot be determined from the given information.
D. Three standard deviations
Answer: Three standard deviation
Step-by-step explanation:
In a normal distribution, 99.7% of the values falls within three standard deviation from the mean.
What is empirical rule?
Empirical rule states that for a normal distribution, 68% of the values falls within one standard deviation from the mean, 95% of the values falls within two standard deviation from the mean and 99.7% of the values falls within three standard deviation from the mean.
Hence:
In a normal distribution, 99.7% of the values falls within three standard deviation from the mean.
Find out more on empirical rule at: https://brainly.com/question/10093236
f(x) = 3 x e^2x
That's the problem
Answer:
6 e (*2)x
Step-by-step explanation:
i hope this helps and the 2 is a square unit
Answer:
y = 0
Step by step explanition:
what is the probability that the power will go of durning a storm, if the probability of it staying on is 78%?
please help!
Answer:
22%
Step-by-step explanation:
100-78=22
just do the simple math
Answer:
22%
Step-by-step explanation:
100-78 = 22
this is because the only other possibility is that the power turns off so you have 100-78 which gives u 22.
A square is attached to a semicircle to make the figure shown in the diagram below .
if the radius of the semicircle is 4 meters ,what is the aproximate area of the figure .
Answer:
C) 89.12 m^2
Step-by-step explanation:
You can find the area of this figure by finding the areas of both shapes (semicircle and rectangle) then adding both areas.
To find the area of a semicircle, use this formula:
1/2πr^2 (1/2 x 3.14 x radius x radius)
Here, this radius is 4.
Now, we just plug in the numbers.
[3.14 is always used for π (pi)].
1/2 x 3.14 x radius x radius
↓
1/2 x 3.14 x 4 x 4 = 25.12
25.12 is the area of the semicircle.
Now, we must find the area of the square.
SQUARES ARE HAVE EQUAL SIDES, SO TO FIND THE AREA, WE SIMPLY MULTIPLY A SIDE LENGTH BY ITSELF TWICE.
8 x 8 = 64.
Now that we have both areas, we add to find the area of the figure.
25.12 + 64 = 89.12
Therefore, the area of this figure is 89.12 meters^2.
Someone help? Will mark brainiest if right!
Answer: 45/36 = 1.25 = 5/4
Correct answer is 5/4
Step-by-step explanation: cos = adjacent / hypotenuse
Find the measure of the angle AED in the figure below
Answer:
112 degrees
Step-by-step explanation:
At a publishing company 60% of the editors are female.
30% of the female editors and 20% of the male editors have a maths degree.
What percentage of all the editors have a maths degree?
0.3 percent because 50% of 60% is 0.3%
does anyone know the answer?? i’ll mark brainlists
7 < z/2 + 3
what is the value of z
Martha’s bakery started with 200 cupcakes in the morning. After a busy afternoon, there were only 60 cupcakes left. By what percent did the cupcake inventory drop?
Answer:
70%
Step-by-step explanation:
140 = 200x
140/200 = x
14/20 = x
7/10 = x
70%
Answer: It dropped by 70%
Step-by-step explanation:
200-60=140
140/200=.70
A graph of f(x) = 6^2 - 11x + 3 is shown on the grid
What are the zeros of f?
A. 3
B. 2 and 9
C. 11/12
D. 1/3 and 3/2
What’s the answer?!!!!!!!
Answer:
no
[tex] {16}^{2} + {35}^{2} is not equal {41}^{2} [/tex]
Calculate the surface area of the figure:
54ft
198ft
21ft
108ft
Answer:
108
Step-by-step explanation:
How many real number solutions does 4x^2+2x+5=0 have?
A and b are positive integers and a-b=2. Evaluate the following:
(27^1/3b)/ ( 9^1/2a)
(this is urgent)
plzzzz I’m stuck help?
Which of the following expressions is equivalent to 4(m – 16)?
Answer:
4m - 64
Step-by-step explanation:
Solve 4(m - 16)
4(m - 16) = 4 x m - 16 x 4
= 4m - 64
Can someone help me plzzz and thank you
Answer:
Yes SAS
Step-by-step explanation:
2 sides are the same
1 90 degree angle for each triangle
Hence the Answer Side-Angle-Side
Is a circle a function?
Step-by-step explanation:
a function that describes a set of points in Cartesian space by mapping each x-coordinate to a y-coordinate, then a circle cannot be described by a function because it fails what is known in High School as the vertical line test. A function, by definition, has a unique output for every input.
pls help me ill give u candy
Answer:
8.9
Step-by-step explanation:
8^2+ s^2=12^2
64+s^2=144
s^2=80
s=square root of 80
s=8.9