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marissa [1.9K]
3 years ago
9

Use the Theorem of Pappus to find the volume of the solid formed by revolving the region bounded by the graphs ofy=x, y=10, and

x=0 about the x-axis.Round your answer to two decimal places.a.) 1809.56b.) 2787.64c.) 2094.40d.) 3141.59e.) 3619.11
Mathematics
1 answer:
Pepsi [2]3 years ago
5 0

Answer:

C) 2094.40

nearest answer.

Step-by-step explanation:

Since the given region is bounded by y = x, y = 10 and x = 0

⇒ 0 ≤ y ≤ 10

Radius and Height are 'y'

∴ The required volume

= ∫₀¹⁰2π(radius)(height)dy

= ∫₀¹⁰2π (y) (y) dy

= ∫₀¹⁰2π y² dy

= 2π ∫₀¹⁰ y² dy

Integrate y

= 2\pi [\frac{y^3}{3}]_0^{10}

= 2\pi [\frac{10^3}{3} - 0]

= \frac{2000}{3} \pi

where π is 3.142

= 2,094.66

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