Find the sum Sn of the first n terms of the geometric sequence.4, , . . . ; n = 8

A.
B.
C.
D.


Answer: B

Mathematics

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Given that the pair of triangles is similar, find the length of the side labeled n.

A. 20 B. 25 C. 12 D. 19

Mathematics

Simplify the difference.(3z + 5) - (z + 4)

A. 3z + 1 B. 2z + 9 C. 2z + 1 D. 3z + 9

Mathematics

Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = , 0 < ? < Find sin ?.

A.
B.
C.
D.

Mathematics

Find the median for the data given.Number of phone calls made each day: 8, 2, 26, 15, 23, 43, 40, 30

A. 23 calls B. 23.5 calls C. 26 calls D. 24.5 calls

Mathematics