Factor the sum or difference of cubes. x3 - y3
A. (x - y)(x2 - y2)
B. (x + y)(x2 - xy - y2)
C. (x - y)(x2 + xy + y2)
D. (x - y)(x2 + xy - y2)
Answer: C
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Find the velocity and position vectors of an object with acceleration a(t) = 4i -72tj + (72t + 4)k, initial velocity v(0) = i + k, and initial position r(0) = j + 3k.
What will be an ideal response?
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 $71.15 when paid weekly.
Jessica Walker, physicist, earns $723 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 $21.69, and a savings bond of $85. Find her net pay.
A. $529.19 B. $470.56 C. $456.89 D. $555.56
Provide an appropriate response.Let f(x) = 
. Find the domain of f.
A. (-?, 7) B. (-?, -7] C. [7, ?) D. (-?, 7]
Find the missing coefficient so that the lines are perpendicular.4x - y = 7 and y = Bx + 
A. B = 1
B. B = - 
C. B = 
D. B = 4