Simplify the expression.
A. 
B. - 
C. 
D. 
Answer: D
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Find the length of the parametric curve defined over the given interval.x = 3 sin3 t, y = 3 cos3 t, 0 ? t ? ?
A. 6 B. 18 C. 3 D. 9
Sketch the graph of the function.y = xe-x/2
A. 
B. 
C. 
D. 
Solve the problem. Use a FICA rate of 6.2%, a Medicare rate of 1.45%, and an SDI rate of 1%. Assume the person's earnings will not exceed $31,800 for the year. Round to the nearest cent if needed.Bill Fox is paid 7% commission on sales. During a recent week, he had sales of 
and allowances of 
Find his Social Security tax, Medicare tax, and SDI deduction for the week.
A. $50.74, $11.87, $8.18 B. $42.46, $9.93, $6.85 C. $42.89, $10.03, $6.92 D. $58.59, $8.18, $9.45
Determine whether the two pairs of numbers are proportional.3, 100 and 27, 90
A. Yes B. No