Determine if the geometric series converges or diverges. If it converges, find its sum.1 + (-4) + (-4)2 + (-4)3 + (-4)4 + . . .

A. diverges
B. converges, 16
C. converges, 4
D. converges, 40

Answer: A

Mathematics

Evaluate.Let a = . Find 9a.

A.
B.
C.
D.

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Mathematics

Simplify. Leave your answer in exponent form.(4a)2

A. 8a B. 8a2 C. 16a D. 16a2

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Mathematics

Multiply.-7ax2(8ax3 + 4x2 - 5a)

A. -56a2x5 - 28ax4 B. -56a2x5 - 28ax4 + 35a2x2 C. -56ax3 - 28x2 + 35a D. -56a2x5 + 4x2 - 5a

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Mathematics

Find the exact value of the expression.

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Mathematics