Convert to a rectangular equation.r - 8 cos ? = 4 sin ?
A. x2 + y2 = 4x + 8y
B. x2 + y2 = 8x + 4y
C. 8x + 4y = 0
D. x2 - y2 = 8x + 4y
Answer: B
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Find the least common denominator.
, 
A. -2(x + 2)(x - 4) B. -2(x - 2)(x - 4) C. -2(x + 2)(x + 4) D. -2(x - 2)(x + 4)
Use the percentage method of withholding, a FICA rate of 6.2%, a Medicare rate of 1.45%, an SDI rate of 1%, and a state withholding tax of 3.4%. One withholding allowance is $73.08 when paid weekly.
Jessica Walker, physicist, earns $720 per week. She is married and claims 1 withholding allowance. Her deductions are FICA, Medicare, federal withholding, state disability insurance, state withholding, retirement contribution of $21.60, and a savings bond of $85. Find her net pay.
A. $526.64 B. $554.70 C. $469.70 D. $454.64
Write as a percent.0.00631
A. 0.631% B. 0.3155% C. 0.0631% D. 0.000631%
Evaluate the expression.Let x = -19, y = -18. Evaluate |21x|.
A. 342 B. -342 C. 399 D. -399