Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 11 terms of the geometric sequence: -4, -12, -36, -108, -324, . . . .

A. -354,255
B. -354,312
C. -354,292
D. -354,290


Answer: C

Mathematics

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A.  ? 
B.  ? 
C.  ? 
D.  ? 

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Solve the problem.Given the following revenue and cost functions, find the maximum profit. (Recall that profit equals revenue minus cost.) R(x) = 53x - 2x2; C(x) = 21x + 100

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Provide an appropriate response.A computer compiles a program in 0.00000358 seconds. Write 0.00000358 in scientific notation.

A. 3.58 × 10-7 B. 3.58 × 10-8 C. 3.58 × 105 D. 3.58 × 10-6

Mathematics