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skad [1K]
3 years ago
10

40 points!!! Please Help!!! (MATH) Will give Brainliest!!!

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
7 0

Answer:

A =62x^2

Step-by-step explanation:

The formula for surface area of a rectangular prism is given by

A=2(wl+hl+hw)

Given a width of 2x and length of 3x and a height of 5x, substitute into the equation

A = 2(2x*3x+ 5x*3x+ 2x*5x)

A = 2(6x^2 + 15x^2 +10x^2)

Combine like terms

A = 2(31x^2)

A =62x^2

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Answer:

Step-by-step explanation:

If you graph there would be two different regions. The first one would be

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{\displaystyle A_2 = 2\pi \int\limits_{1}^{2} x(2-x) dx = \frac{4\pi}{3} = 4.188 }

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If you revolve just the outer curve you get

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And the sum would be 1.5708+1.0472 = 2.618

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