Answers
Answer:
Step-by-step explanation:
As all are similar polygons , corresponding sides will be in proportion.
[tex]1)\frac{9}{12} =\frac{3}{4}\\\\[/tex]
Scale factor = 3 : 4
[tex]2)\frac{12}{15}=\frac{4}{5}\\\\[/tex]
Scale factor = 4 : 5
[tex]3) \frac{10}{25}=\frac{2}{5}\\[/tex]
Scale factor = 2:5
4)
[tex]\frac{8}{16}=\frac{1}{2}[/tex]
Scale factor = 1 : 2
Related Questions
A company performed power tests on a set of batteries of the same type. The company determined that the equation y = 100 - 8.9x, where x is the number of hours of use and y is the percent of battery power remaining, models the battery life. Based on the equation, what is the best prediction of the percent of remaining power for a battery after 11 hours of use? *
A.1.2%
B.2.1%
C.10%
D.97.9%
Answers
Answer:
B) 2.1
Step-by-step explanation:
Answer: 2.1%
Step-by-step explanation:
y = 100 - 8.9 (11)
y = 100 - 97.9
y = 2.1
Which graph shows a rate of change of one-half between –4 and 0 on the x-axis? On a coordinate plane, a straight line with a positive slope crosses the x-axis at (6, 0) and the y-axis at (0, 3). Solid circles appear on the line at (negative 4, negative 1), (0, 3). On a coordinate plane, a parabola opens up. It goes through (negative 5.25, 4), has a vertex of (0, negative 3), and goes through (5.25, 4). Solid circles appear on the parabola at (negative 4, 1), (0, negative 3). On a coordinate plane, a parabola opens down. It goes through (negative 5.5, negative 4), has a vertex of (0, 4), and goes through (5.5, negative 4). Solid circles appear on the parabola at (negative 4, 0), (0, 4). On a coordinate plane, a curved line opens up and left in quadrant 2. It is asymptotic to the negative x-axis and positive y-axis. Solid circles appear on the line at (negative 4, 0.25), (0, 4).
Answers
Answer:
First option
Step-by-step explanation:
There is a mistake in the description of the first function.
On a coordinate plane, a straight line with a positive slope crosses the x-axis at (-6, 0) and the y-axis at (0, 3). Solid circles appear on the line at (-4, 1), (0, 3).
Given two points of a function, (x1, y1) and (x2, y2), its rate of change between them is:
Rate of change: (y2 - y1)/(x2 - x1)
Points of the 1st graph: (-4, 1), (0, 3).
Rate of change: (3- 1)/(0 - (-4)) = 1/2
Points of the 2nd graph: (-4, 1), (0, -3).
Rate of change: (-3 - 1)/(0 - (-4)) = -1
Points of the 3rd graph: (-4, 0), (0, 4).
Rate of change: (4 - 0)/(0 - (-4)) = 1
Points of the 4th graph: (-4, 0.25), (0, 4).
Rate of change: (4 - 0.25)/(0 - (-4)) = 0.9375
Answer:
a
Step-by-step explanation:
answer on edge
Are these fractions proportional or non proportional?
3/8 , 13/40
Work please!
Answers
Answer:
Not proportional
Step-by-step explanation:
3/8 13/40
3/8*5/5
15/40
15/40≠13/40
Not proportional
which of the following best describes the algebraic expression 7(x + 12) - 4
Answers
Answer:
7(x+12) - 4
7x + 84 - 4
7x + 80
A swimming pool has a radius of 8 feet and a height of 5 feet. The swimming pool is shaped like a cylinder. What is the volume of the swimming pool, to the nearest cubic foot? Use 3.14 for π
Answers
Answer:
1005cm³
Step-by-step explanation:
8² x 3.14 = 200.96 = surface area of face
200.96 x 5 = 1004.8 = 1005cm³
Answer:
Volume = 1004.8ft*3
However with full measure π it is slightly higher on calculator.
1005.31ft^3
Step-by-step explanation:
(V):3.14 x 8^2=200.96 x 5
(V):200.96 x 5 = 1004.8
Volume =1004.8ft^3
Solve 4(x−9)=4(9+13x).
The solution is x=
Answers
Answer:
-1.5
Step-by-step explanation:
4x - 36 = 36 + 52x
We can make this into another equation.
72 + 52x = 4x
4x - 52x = -48x
-48x = 72
48x = -72
x = -72/48 = -1.5
Pls do mark me as brainliest.Thanks! ;)
Answer:
x = - [tex]\frac{3}{2}[/tex] = - 1.5
Step-by-step explanation:
Given
4(x - 9) = 4(9 + 13x) ← distribute parenthesis on both sides
4x - 36 = 36 + 52x ( subtract 52x from both sides )
- 4x - 36 = 36 ( add 36 to both sides )
- 4x = 72 ( divide both sides by - 4 )
x = [tex]\frac{72}{-4}[/tex] = - [tex]\frac{3}{2}[/tex] = - 1.5
Line segment AB was dilated to create line segment A'B' using the dilation rule DQ,0.15.
What is x, the distance between points A and A'?
2.4 units
4.8 units
13.6 units
14.4 units
Answers
Answer:
13.6
Step-by-step explanation:
The measure of the segment AQ is related to the measure of the segment A'Q by the dilation factor as follows:
dilation factor = A'Q/AQ
AQ = A'Q/dilation factor
Replacing with data:
AQ = 2.4/0.15 = 16
Then, the distance between points A and A' is
x = 16 - 2.4 = 13.6
The distance between points A and A' is 13.6 units
Dilation of coordinatesDilation is a way of changing the position of an image on an xy-plane.
The measure of the segment AQ is related to the measure of the segment A'Q by the dilation factor. Hence'
scale factor = A'Q'/AQ
Given the following
A'Q' = 2.4
Scale factor = 0.15
Substitute
AQ = 2.4/0.15
AQ = 16
x = 16 - 2.4
x = 13.6
Hence the distance between points A and A' is 13.6 units
Learn more on dilation here: https://brainly.com/question/10253650
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please solve!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
B
Step-by-step explanation:
plug in and solve ☻
What number would go in the boxes
Answers
29.01
30.41
Step-by-step explanation:
I think
29.99 + 1.42 = 31.41
1. There were 144 people in attendance at the school football game last Friday. This week there were 346 people in attendance at the school football game.What is the percent of change from last week to this week?Round your answer to the nearest whole number
Answers
Answer:
percentage change ≈ 140%
Step-by-step explanation:
There were 144 people in attendance at the school football game last Friday. This week there were 346 people in attendance at the school football game.What is the percent of change from last week to this week?Round your answer to the nearest whole number
To calculate the percentage change, we will follow the steps below:
First, we will find the difference(that is increase) between 144 and 346
Increase = New number - Original number
= 346 - 144
= 202
Next is to divide the increase which is 202 by the original number which is 144 and then multiply by 100
That is;
percentage change = increase ÷ original number × 100
=202 / 144 × 100
≈ 140 to the nearest whole number
percentage change ≈ 140 %
The figure shown is a triangular prism. How much would it cost to cover the bases and the other three faces with foil that costs $0.26 per square foot?
Answers
Answer:
Try mutiplying it by nine
Step-by-step explanation:
Since a triangular prism has 3 sides and each side has 3 corners in all there're 9 corners if thats not it try 3
Answer:
answer is 39
Step-by-step explanation:
Write in point-slope form an equation of the line that passes through the point (6,−1) with slope −1/3.
Answers
Answer:
[tex]y=-\frac{1}{3} x-3[/tex]
Step-by-step explanation:
If you graph the equation, you'll see that the y-intercept is -3 and the slope is [tex]\frac{1}{3}[/tex]
Answer:
[tex]y-1=-\frac{1}{3}\left(x-0\right)[/tex]
Step-by-step explanation:
I graphed the equation on the graph below. I used the slope and the point given to create the equation of the line.
Admission to a local aquarium is $10 for adults and S7 for children. The aquarium collected $6,459 from the sale of 783 tickets. How many childrens tickets were sold?
(1) 326
(2) 362
(3) 417
(4) 457
Answers
Answer:
The answer is 457
Step-by-step explanation:
You set up an equation as
10a+7c=6459
a+c=783
c= child
a= adult
then you simplify to 3a=978 by taking out one of the values. You get a - 326.
783-326=457 so there is your answer
A shirt is on sale for 30% off. The expression p minus 0.30 p, where p is the original cost of the shirt, can be used to find the sale price. Which expression means the same as decreased by 30%?
Answers
Answer:
Step-by-step explanation:
"the same as decreased by 30%" would be (1.00 - 0.30)(original cost), or
0.70(original cost)
Note: when answer choices are give, kindly share them. Thank you.
Which transformation applied to point P is described below?
Draw a line perpendicular to a given line and passing through P. Find the point the same distance from the given line as P but located on the other side of the given line.
A. reflection
B. rotation
C. translation
D. none of the above
Answers
Translation I believe , because reflecting would have the P upside down and that’s not represented
0=x^2-4x+3 how many roots does this equation have
Answers
Answer:
No complex roots; 3 real roots
Step-by-step explanation:
If a third order polynomial has any complex roots, then as a rule it has 1 real root and 2 complex roots. In this particular case, the polynomial has three real roots, as can be determined by graphing the function. The graph crosses the x-axis in 3 places.
Let the equation C = 2.32 N + 34,180 represent the cost of raising a child, C, on an income, N.
If the Murphy family has an annual income of $60,000, what is the expected cost of raising a child?
$172,460
$173,380
$175,620
$176,980
Answers
Answer:
173,380
Step-by-step explanation:
just took the test and got it right
The expected cost of raising a child is $173,380.
Given,
C = 2.32 N + 34,180.
C represents the cost of raising a child.
N represents the income.
If the Murphy family has an annual income of $60,000.
We are to find the expected cost of raising a child using the given equation.
We have,
C = 2.32 N + 34,180________(A)
Now,
If the Murphy family has an annual income of $60,000.
N = $60,000___________(B)
Putting (B) in (A).
C = 2.32 x $60,000 + 34,180
C = 139,200 + 34,180
C = $173,380.
Thus the expected cost of raising a child is $173,380.
Learn more about expected costs here:
https://brainly.com/question/14874343?referrer=searchResults
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Can someone plz explain how to do this?
Answers
Answer:
the answer is f.
Step-by-step explanation:
it is the only sensible answer. every 5 years it increases by ~40%.
A father is four times as old as his son. In 3 years, the father will be three times as old as his son. How old is each now?
Answers
4x+3=3(x+3)
4x+3=3x+9
4x-3x=9-3
x=6
So The Father is 24 and the Son is 6
i need help fast will give brainliest!!!
Answers
Answer:
C and D
Step-by-step explanation:
the answers are C and D.
Which of the following shows a way to factor the expression −6x + 18? Select all that apply.
Answers
Answer:
-6(x-3)
Step-by-step explanation:
Answer:
x=24
Step-by-step explanation:
1. try to put x by itself
2. move the -6 but turn it into a positive
3.add the 18 and 6 an that becomes your answer an equals to x
Which of the following is a complex number?
-7
2+√3
4 + 9
X
Answers
Answer:
B: 2 + √3
Step-by-step explanation:
None
I need help with this problem. It's urgent
Answers
Answer:
32 servings
Step-by-step explanation:
There are eight eighths in a cup. Multiply 8 by 4 and you get 32.
Answer:
32
its 1/8 x 8 then 1 cus that makes it a whole so it would be 32 becuase 8 x 4 is 32
What is the value of x?
Answers
Answer:
x=45
Step-by-step explanation:
Because angles TRS and TRV are a linear pair, their two angle measures must add up to 180 degrees. Therefore:
x+3x=180
4x=180
x=180/4=45 degrees
Hope this helps!
Answer:
45
Step-by-step explanation:
its a strait line so both of those angles are equal too 180 deg.
3x+x = 180
4x=180
x= 45
How to solve this kind of question?
Show steps!
Answers
Answer:
$130.34
Step-by-step explanation:
In this example, the total amount Myra has to pay is (original cost) + (total interest). This is because she has to pay interest because she bought clothes. Her total cost for the clothes is then 124.96+5.38=130.34
Simplify the expression 27 divided by -3
Answers
Hey!!!
Here's your answer
27/-3
= -9
so the right answer is -9
hope it helps...
Answer:
-9 is the answer
Step-by-step explanation:
27 = -3(-9)
negative(negative)= Positive
write each as a percent. use repeating decimal when necessary.
Answers
29.) .67 or 67%. 30.) 0.01 or 1%
31.) 2.1 or 210%. 32.) .375 or 38%
33.) .1 or 10%. 34.) .87 or 87%
Answer:
27. 50%
28. 12.5%
29. 66.66%
30. 1%
31. 210%
32. 37.5%
33. 10%
34. 87%
Step-by-step explanation:
If two fair dice, one red and one white, are rolled, in how many ways can the result be obtained?
A different number on each die.
O A. 25 ways
OB. 30 ways
O c. 6 ways
D. 36 ways
Answers
Answer:
36 ways
Step-by-step explanation:
there are 6 numbers that are on that dice
so 6 times 6 is 36
which means that there are 36 ways to obtained the results
hope this makes sense
A basket contains seven apples and four peaches. You randomly select a piece of fruit and then return it to the basket. Then you randomly select another piece of fruit. Both pieces of fruit are apples
Answers
Step-by-step explanation:
Total fruits = 7+ 4 = 11
Probability of apples = 7/ 11
The probability of the apples should be [tex]7\div 11[/tex]
Calculation of the probability:Since A basket contains seven apples and four peaches. You randomly select a piece of fruit and then return it to the basket.
So here the total fruits should be
= 7 + 4
= 11
Now the probability of the apple should be [tex]7\div 11[/tex]
hence, we can conclude that The probability of the apples should be [tex]7\div 11[/tex]
Learn more about probability here: https://brainly.com/question/20306112
Please give me the answer quick
Answers
Answer:
MON= 57
Step-by-step explanation:
5x-23+3x-15=90
8x-38=90
8x=128
x=16
PLUG 16 INTO MON EQUATION
5(16)-23=57
therefore,
MON=57
USE COMPLEMENTARY FOR PROBLEMS LIKE THIS :)))
(btw, assuming that the angle is 90 degrees)