Write a formula for the general term (the nth term) of the geometric sequence.4, - , , - , , . . .

A. a_n = 4 ⁿ
B. a_n = 4 ^{n - 1}
C. a_n = 4 ^{n - 1}
D. a_n = 4 ^{n + 1}

Answer: B

Mathematics

You might also like to view...

Evaluate the surface integral of the function g over the surface S.G(x, y, z) = x + z; S is the surface of the wedge formed from the coordinate planes and the planes and y = 2

A. 45 + 18
B. 36 + 6
C. 36 + 18
D. 27 + 18

View

Mathematics

Find the indicated term of the geometric sequence.a6 when a1 = 4 and r = -2.

A. 256 B. -32 C. 128 D. -128

View

Mathematics

Evaluate the given function.f(x) = 2x, f(4)

A.
B.
C. 8
D. 16

View

Mathematics

Use the change-of-base formula and a calculator to evaluate each logarithm.log49 56.84

A. 1.7547 B. 1.0381 C. 1.1600 D. 0.9633

View

Mathematics