Find the amount accumulated after investing a principal P for t years at an interest rate r.P = $14,000, t = 4, r = 9%, compounded semiannually (k = 2)

A. $19,052.07
B. $19,762.14
C. $5909.41
D. $19,909.41


Answer: D

Mathematics

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Find the coordinates of the vertex and the intercepts of the quadratic function. When necessary, approximate the x-intercepts to the nearest tenth.f(x) = x2 - 12x + 20

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Solve the problem.The cost C of producing t units is given by C(t) = 5t2 + 5t, and the revenue R generated from selling t units is given by  For what values of t will there be a profit?

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Simplify. ? 

A.
B.
C.
D. 2

Mathematics