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yuradex [85]
2 years ago
7

Which questions can be answered by finding the surface area? Check all that apply.

Mathematics
1 answer:
True [87]2 years ago
3 0

Answer:

Step-by-step explanation:

Surface area is pretty synonymous with area.

How much paint is needed to paint the outside of a birdhouse?

Paint is measured in volume, so not surface area

How much wallpaper is needed to cover the walls of your room?

Since its just the walls its not total surface area, but surface area of the walls.

How much water will it take to fill a rectangular container?

water is measured in volume, especially when wanting to fill something.

How much topsoil can a gardener place in his wheelbarrow?

Wants to know how much topsoil is needed to FILL the wheelbarrow, filling is volume.  So not surface area.

How much fabric is needed to make a pillowcase for a pillow?

Not asking to fill the pillowcase, just how much is needed for the thin, one layer thick case.  So this is surface area.  

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Kayla squared a number x and added this result to -6.5. This gave her an answer of 42.5.
ladessa [460]

Answer:

7, -7

Step-by-step explanation:

x^2-6.5= 42.5 add 6.5 to both sides

x^2= 49

The square root of 49 is 7 and -7.

7 0
2 years ago
Which is Greater 3/4 or 11/16
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3 years ago
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I dont know if this helps since no one else is answering I’d like to help
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2 years ago
The length of a rectangle is three times it's width. The perimeter of the rectangle is 100 inches. What are the dimensions of th
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Answer:

Dimensions : 37.5 * 12.5

length : 37.5

width : 12.5

Step-by-step explanation:

let x = length and y = width

x = 3y based on info from problem

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100 = 2(x + y)

substitute 3y for x

100 = 2(3y + y)

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100 = 8y

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x = 3(12.5) = 37.5

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3 years ago
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