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NISA [10]
3 years ago
7

HELP PLEASE!!!! A window is 4 feet wide and 8 feet tall. A rectangle is shown. The length of the rectangle is labeled 4 feet. Th

e width of the rectangle is labeled 8 feet. A manufacturer wants to use a scale factor of 1.5 to enlarge a window. What will the area of the window be after it is enlarged?
32 ft2
48 ft2
52.25 ft2
72 ft2
Mathematics
2 answers:
vredina [299]3 years ago
8 0

Answer:

72ft

Step-by-step explanation:i took the exam and got it right!

Bingel [31]3 years ago
3 0
First, always draw. You learned to draw in kindergarben (Yes I spelled it like that on purpose LOL) for a reason.

1) Draw your rectangle on a piece of paper or paint. 
2) Scale factor each side to enlarge which means you're going to multiply. 
--- Note if it said 'to reduce' then you would divide.
3) Then find the area by multiplying the two given sides (12 x 6 = 72).
4) Don't forget your unit of measurement - 72ft²

So your answer is D.

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Are the length of a side of a square and the perimeter of the square related proportionally? Why or why not?
mariarad [96]
Yes it is because 4 times the length of a side of a square equals to the perimeter of the square

Hope this helps!

Plz give me brainliest answer!!:):)
3 0
3 years ago
The graph of f (x)= x² has been translated 4 units down.
weeeeeb [17]

Answer:

the new equation is f(x)=x^2-4  

vertex- (0,-4)

zeros- (-2,2)

y-intercept- (-4)

and it has a minimum

Step-by-step explanation:

4 0
3 years ago
Solving systems of Equations Word Problems - CLASSWORK
dem82 [27]

Answer:

Part A) For the number of hours less than 5 hours it make more sense to rent a scooter from Rosie's

Part B) For the number of hours greater than 5 hours it make more sense to rent a scooter from Sam's

Part C) Yes, for the number of hours equal to 5 the cost of Sam'scooters is equal to the cost of Rosie's scooters

Part D) The cost is $90

Step-by-step explanation:

Let

x-------> the number of hours (independent variable)

y-----> the total cost of rent scooters (dependent variable)

we know that

Sam's scooters

y=8x+30    

Rosie's scooters

y=10x+20

using a graphing tool

see the attached figure

A. when does it make more sense to rent a scooter from Rosie's? How do you know?

For the number of hours less than 5 hours it make more sense to rent a scooter from Rosie's  (see the attached figure) because the cost in less than Sam' scooters

B. when does it make more sense to rent a scooter from Sam's? How do you know?

For the number of hours greater than 5 hours it make more sense to rent a scooter from Sam's  (see the attached figure) because the cost in less than Rosie' scooters

C. Is there ever a time where it wouldn't matter which store to choose?

Yes, for the number of hours equal to 5 the cost of Sam'scooters is equal to the cost of Rosie's scooters. The cost is $70 (see the graph)

D. If you were renting a scooter from Rosie's, how much would you pay if you were planning on renting for 7 hours?

Rosie's scooters

y=10x+20

For x=7 hours

substitute

y=10(7)+20=90

The cost is $90

4 0
3 years ago
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Degger [83]
Work applied to motor is 320j.
6 0
3 years ago
Read 2 more answers
21 The graph of an exponential function is shown on the grid.
morpeh [17]

Answer:

  • C The range is the set of all real numbers greater than 0.

Step-by-step explanation:

We see that the function has positive range and no restriction of domain.

A The range is the set of all real numbers less than 0.

  • Incorrect, positive values only

B The domain is the set of all real numbers greater than-4.

  • Incorrect, the domain can get any value

C The range is the set of all real numbers greater than 0.

  • Correct, the range is restricted to positive values

D The domain is the set of all real numbers less than-4.

  • Incorrect, no restrictions
5 0
3 years ago
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