3 years ago

HELP WHATS THIS ANSWER?? WILL MARK BRAINLIEST

Mathematics

1 answer:

Anni [7]3 years ago

6 0

I believe the answer to your question is B. I may be wrong

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y = ln x , 1 <= x <= 3, about x axis and n = 10, dy/dx = 1/ x

S = (b a) ∫ 2π y √( 1 + (dy/dx) ^2) dx

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(b - a) / n = / 3 = (3-1) / 30 = 1/15

x0 = 1 , x1 = 1.2, x2 = 1.4, x3 = 1.6 ....... x(10) = 3

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( Note f(1) = 2 * π * ln 1 * √(1 + (1/1)^2) = 0 and f(3) = 2π ln3√(1+(1/3^2) = 7,276)

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Step-by-step explanation:

The volume of a cylinder is calculated using

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where r =4 inches is the radius and V=351.68 is the volume.

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Divide both sides by 50.24 to get:

$h = \frac{351.68}{50.24}$

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