Solve the problem by integration.Find the volume of the solid that is generated by revolving the area bounded by    and  about the x-axis.

A.
B.
C.
D.


Answer: A

Mathematics

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Solve the problem.How long will it take for prices in the economy to double at a 7% annual inflation rate? Round the answer to the nearest hundredth.

A. 16.24 yr B. 23.45 yr C. 10.24 yr D. 9.01 yr

Mathematics

Determine whether the two equations in the pair are equivalent.4x = 20 and 10x = 60

A. Equivalent B. Not equivalent

Mathematics

Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. {(-7, 7)} B. {(7, -7)} C. {(11, -11)} D. {(-4, 7)}

Mathematics

Perform the indicated operations and simplify. 

A.
B.
C.
D.
E.

Mathematics