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 = 3, r = -2.
A. -384
B. 768
C. -11
D. -380
Answer: A
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Solve the problem.The polynomial 
gives the approximate total earnings of a company, in millions of dollars, where x represents the number of years since 1996. This model is valid for the years from 1996 to 2000. Determine the earnings for 2000. Round your answer to two decimals, if necessary.
A. $1.73 million B. $1.95 million C. $2.13 million D. $2.24 million
Solve the system graphically. Give x- and y-coordinates correct to the nearest hundredth.y = e2x + 32x + y = 3
A. {(-0.75, 4.50)} B. {(0.75, 4.50)} C. {(0.75, -4.50)} D. {(-0.75, -4.50)}
Find (P ? Q)(x).P(x) = x + 6; Q(x) = x - 9
A. x2 + 15x + 54 B. x2 - 3x - 54 C. x2 + 3x - 54 D. x2 - 3x + 54
Is the relation a function?y2 + 2y - x + 6 = 0
A. Yes B. No