Find the sum of the geometric series.
Express the answer as a fraction.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Write a formula for the nth term of the arithmetic sequence. Use the formula to find the indicated term of the sequence.a = 78, d = -10;
Find a6.
A. an = 88 - 10n, a6 = -42 B. an = 78 - 10n, a6 = -42 C. an = 78 - 10n, a6 = 28 D. an = 88 - 10n, a6 = 28
Mathematics
Factor completely, if possible.x2 + 1.4x + 0.49
A. (x + 0.7)(x - 0.7) B. Prime C. (x + 0.7)2 D. (x - 0.7)2
Mathematics
Simplify.- 
A. 
B. 
C. - 
D. - 
Mathematics
Solve by factoring.x2 + 13x + 36 = 0
A. {4, 9} B. {-36, -1} C. {-4, -9} D. {1, 36}
Mathematics