Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first five terms of the geometric sequence: -2, -6, -18, . . . .

A. - 121
B. -26
C. - 242
D. 242


Answer: C

Mathematics

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Graph the function.f(x) = 

A.

B.

C.

D.

Mathematics

If one of student is selected at random what is the probability that he or she spent between 10 and 20 hours in the lab?

Use the following information to answer question, 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8

Mathematics

Use a calculator to approximate the root to the nearest thousandth.

A. -2.565 B. -2.595 C. -2.577 D. -2.586

Mathematics

Insert ? or ? in the blank to make the statement true.{0, 2, 4, 7}  {2, 4, 7, 8, 9, 10}

A. ? B. ?

Mathematics