Find the indicated partial sum for the sequence with the given general term. s6, an = -3n + 6
A. 18
B. -12
C. -27
D. 3
Answer: C
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Write the first four terms of the geometric sequence.a = 160, r > 0, a5 = 10
A. 160, -80, 40, -20 B. 160, 80, 40, 20 C. 80, 40, 20, 10 D. 160, 80, 40, 10
Solve the problem.The number of ways that the first-, second-, and third-place winners in a singing competition can be selected from n finalists is given by P(n) = n3 - 3n2 + 2n. If there are 6 finalists, how many ways can the first-, second-, and third-place winners be selected?
A. 216 B. 20 C. 120 D. 720
Perform the division.
A. r + 4 B. r2 + 4 C. r - 4 D. r2 - 4
Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.a = 9, b = 6, c = 5
A. A = 109°, B = 39°, C = 32° B. A = 39°, B = 32°, C = 109° C. A = 109°, B = 32°, C = 39° D. A = 39°, B = 109°, C = 32°