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