Simplify the complex rational expression.
A. - 
B. - 
C. - 27
D. - 
Answer: B
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = cos t + 4 cos 3t, y = 5 cos t - 4 sin 3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.From a distance of x feet to a 110-meter-high radio tower, the angle of elevation is ? degrees. Then 
Use a reciprocal identity to rewrite this formula.
A. 110 cot ?
B. 
C. 110 sec ?
D. 
Mathematics
Solve the exponential equation. Round to three decimal places when necessary.ex - 12e-x = 4
A. 1.668 B. 1.792 C. 1.915 D. 1.804
Mathematics
Find the effective yield for the investment. Round to the nearest hundredth of a percent. ? 10%, compounded semiannually ? __________%
Fill in the blank(s) with the appropriate word(s).
Mathematics