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2 years ago

College Math!!! I did the first half of the question, I just need the bottom half of it.

Mathematics

1 answer:

ella [17]2 years ago

7 0

Answer:

-49

Step-by-step explanation:

$\int _{-5}^{-2}\:\left(8\:w\left(r\right)-3\right)dr$ = $\int _{-5}^{-2}\:8\:w\left(r\right)dr$ -3 (-2 -(-5)) = $8 \int _{-5}^{-2}\:\:w\left(r\right)dr$ -9 =8(-5) -9 = -49

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What is the surface area of a rectangular prism that has a height of 5 cm, a width of 10 cm, and a depth of 4 cm?

Ket [755]

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,

$A=2 \cdot(110)$

Multiplying, we have,

$A=220$

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

Hence, Option C is the correct answer.

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