Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first six terms of the geometric sequence: 4, 8, 16, . . . .

A. 252
B. 63
C. 8190
D. 28


Answer: A

Mathematics

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Evaluate.62 

A. 64 B. 36 C. 12 D. 49

Mathematics

Rationalize the denominator and simplify. Assume that variables represent positive values.

A.
B.
C.
D.

Mathematics

Solve the equation.21  + 4y = y2

A. -3, -7 B. 7, 3 C. 7, -3 D. 3, -7

Mathematics

Find the reciprocal, if it exists.14

A. - 
B. -14
C.  
D. 1

Mathematics