Assume that , and that U is the universal set of natural numbers less than 11. Find

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?



A.
B.
C.
D.
E.

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Answer: C

Mathematics

Find the volume of the indicated region.the region that lies under the plane   and over the triangle with vertices at , , and 

A. 6 B. 10 C. 12 D. 8

Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve  - 3 ? x ? 3, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?

A. 13 B. 10 C. 3 D. 5

Simplify the radical. Assume that all variables represent nonnegative real numbers.  

A. 30y6 B. 30y3 C. 450y3 D. 900y3

Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.-8 - 24 - 72 - 216 - 648 - ... - 8 ? 311

A. -2,125,723 B. -2,125,760 C. -2,125,758 D. -2,125,780