Solve.Five times a number, added to -3, is 42. Find the number.
A. 45
B. -9
C. 225
D. 9
Answer: D
Mathematics
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Find the velocity vector in terms of ur and u?.r = 2 cos 2t and ? = 4t
A. v = (-8 sin 4t)ur + 4cos 4tu? B. v = (4 sin 2t)ur + 8cos 2tu? C. v = (-4 sin 2t)ur + 8cos 2tu? D. v = (-2 sin 2t)ur + 8cos 2tu?
Mathematics
Divide.
A. 7x + 2 + 
B. 13x + 2
C. 7x + 10x3 + 
D. 7x + 2
Mathematics
Find the Social Security tax for the current pay period. Assume a 6.2% FICA rate up to a maximum of $115,000.Gross Earnings This Year: $110,965Current Period Earnings: $5,636
A. $243.97 B. $250.17 C. $349.43 D. $99.26
Mathematics
Find the axis of symmetry of the function.f(x) = 9x - x2
A. x = - 
B. x = - 
C. x = - 
D. x = 
Mathematics