Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a8 when a1 = -5, r = 2.
A. 9
B. -636
C. -1280
D. -640
Answer: D
Mathematics
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Use the given graph to find the x-intercepts and zeros of the function.
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