Select ALL the correct answers. Consider the geometric sequence below. -4, -6, -9, -27/2, -81/2 Select all functions that define the given sequence. f(1) = -4 f(n) = -f(n − 1), for n = 2, 3, 4, ... O f(1) = 4 f(n) = - . f(n − 1), for n = 2, 3, 4, ... (n) = 4.(-3) n = 1

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

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The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4? r^2. write your answer in scientific notation.