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lesya [120]
3 years ago
8

What is x + 8 = .5?

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0
X + 8 = 0.5

Take away 8 from both sides:

x = 0.5 - 8

x = -7.5

Answer: x = -7.5
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Option C: 220 \ cm^2 is the surface area of the rectangular prism

Explanation:

The height of the rectangular prism is 5 cm

The width of the rectangular prism is 10 cm

The depth of the rectangular prism is 4 cm

We need to determine the surface area of the rectangular prism.

The surface area of the rectangular prism can be determined using the formula,

A=2(w l+h l+h w)

Substituting w=10 , h=5 and l=4 in the formula, we get,

A=2 \cdot(10 \cdot 4+5 \cdot 4+5 \cdot 10)

Multiplying the terms within the bracket, we have,

A=2 \cdot(40 +20+5 0)

Adding all the values within the bracket, we get,

A=2 \cdot(110)

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Thus, the surface area of the rectangular prism is 220 \ cm^2

Hence, Option C is the correct answer.

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or

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3 years ago
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