Solve the problem.Find the radius (to the nearest hundredth of a millimeter) of a pulley if rotating the pulley 109.38° raises the pulley 42.2 mm.
A. 21.91 mm
B. 22.11 mm
C. 22.01 mm
D. 22.21 mm
Answer: B
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Match the differential equation with the appropriate direction field.y'(x) = x2 - y2
A. 
B. 
C. 
D. 
Give the value of the indicated trigonometric function of a vector with the indicated end point.(-3, -2); Find tan ?.
A. - 
B. 
C. - 
D. 
Solve the problem using the loan payoff table or an amortization table.
A movie star purchased a home costing $942,957. He put 20% down and signed a note for monthly payments at 9% interest for 4 years. Find the amount of each monthly payment and the total amount of interest paid on the loan.
A. $19,130.71, $163,908.48 B. $23,470.20, $183,612.60 C. $18,776.16, $146,890.08 D. $18,414.06, $129,509.28
Determine whether the ordered triple is a solution to the given linear system.(2, 9, -4)
A. Yes B. No