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3 years ago

6

A box spring in the shape of a rectangular prism has a length of a 40 in., a width of 80 in., and a height of 4 of 9 in. what is

the surface area of the box spring?
A) 8,560
B) 9,600
C) 19,200
D) 28,800

1 answer:

gladu [14]3 years ago

7 0

19,200 ! To get the surface area of the rectangular prism you have to get the area of each side. Length x Width x Sides(6 in your case).

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Elanso [62]

His work should have looked like this.

2x + y = 5
x − 2y = 10

y = 5 − 2x
x − 2(5 − 2x) = 10
x − 10 + 4x = 10
5x − 10 = 10 When he added in both sides, he subtracted 10 from 10,
5x = 20 instead of adding 10 from 10 to make 20.
x = 4
2(4) + y = 5
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Answer:

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Step-by-step explanation:

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svet-max [94.6K]

Answer:

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Step-by-step explanation:

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