Rationalize the denominator. Write the quotient in lowest terms.

A.
B.
C.
D.


Answer: D

Mathematics

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Find the value of the indicated sum.

A. 4 cos ? + 64 cos 3? = -68 B. 4 cos ? + 16 cos 2? + 64 cos 3? = -52 C. 4 cos ? + 16 cos ? + 64 cos ? = -84 D. 4 cos ? + 16 cos 2? + 64 cos 3? = 52

Mathematics

An initial investment of $557.33 grows at a rate of 5 percent per year.  What is the value of the investment after 4 years? Round your answer to the nearest cent. ?

A. $585.20 B. $668.80 C. $677.44 D. None of the above

Mathematics

Simplify.

A. -3x11 B. 3x11 C. 3x7 D. -3x7

Mathematics

Find the radius of convergence of the series. Select the correct answer.

Mathematics