Question: I can't understand how to do these two problems. Please help! i'm confused Questions 8 -9. Let the base of a solid be enclosed by

I can't understand how to do these two problems. Please help!

i'm confused Questions 8 -9. Let the base of a solid be enclosed by the x-axis, the y-axis, and the graph of y = 2 -x2. Find the volume of each solid for the given cross sections taken perpendicular to they-axis. 8. Square 9. Semi-circle

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