Write the first four terms of the sequence.an = 2n
A. a1 = 1, a2 = 2, a3 = 4, a4 = 8
B. a1 = 2, a2 = 4, a3 = 8, a4 = 16
C. a1 = 1, a2 = 4, a3 = 9, a4 = 16
D. a1 = 4, a2 = 8, a3 = 16, a4 = 32
Answer: B
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Evaluate the integral.
A. sin-1 
B. cos-1 
C. 9 cos-1 
D. 
sin-1 
Find the indicated sum. If necessary, round to four decimal places.S10 for the geometric sequence $500, $500(1.08), $500(1.08)2, . . .
A. 759.357 B. 14,486.5625 C. 8322.7437 D. 7243.2812
Write a third-degree polynomial equation with real coefficients and the roots 5, 5 + i. ?
A. 
B. 
C. 
D. 
E. none of these
First, use front end rounding to estimate each answer. Then find the exact answer.A lawsuit settlement of 
is to be distributed among 21 claimants. How much will each claimant get?
A. estimate: $1,150,000 ÷ 20 = $57,500; exact: $1,155,000 ÷ 21 = $55,000 B. estimate: $1,000,000 ÷ 20 = $50,000; exact: $1,155,000 ÷ 21 = $55,000 C. estimate: $1,100,000 ÷ 20 = $55,000; exact: $1,155,000 ÷ 21 = $55,000 D. estimate: $1,050,000 ÷ 21 = $50,000; exact: $1,155,000 ÷ 21 = $55,000