Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.-7 - 14 - 28 - 56 - 112 - ... - 7 ? 211
A. -28,663
B. -28,685
C. -28,665
D. -28,628
Answer: C
Mathematics
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A. 
B. 
C. 90(ln 90 - 1)
D. 90(ln 90 - 2)
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Simplify the difference quotient by rationalizing the numerator.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
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Evaluate the derivative.f(v) = 5 sinh-1 v5
A. 
B. 
C. 
D. 
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Solve the following systems of linear equations using Gaussian elimination.
x - 2y = 1 2x - y = 5
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