Find the center-radius form of the equation of the circle.center (-
, -4), radius 
A. (x + 
)2 + (y + 4)2 = 3
B. (x + 
)2 + (y + 4)2 = 
C. (x - 
)2 + (y - 4)2 = 3
D. (x - 
)2 + (y - 4)2 = 9
Answer: A
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Find the length of the curve.The curve r = 9 sin3 
, 0 ? ? ? 
A. 
(5? - 8)
B. 27(3
- ?)
C. 
(5? - 9
)
D. 
(2? - 3
)
Evaluate the double integral.
A. 
B. 9
C. 27
D. 
Solve each of the following systems of equations. If the system is inconsistent or dependent, say so.x + y = 8x - y = 2
A. (5, 3) B. No solution C. (4, 4) D. (-5, 4)
Solve the problem.
Abbey is driving a delivery truck on a straight road. The graph shows the distance y in kilometers that Abbey is from Store A after x hours. (i) Is Abbey traveling toward or away from Store A? (ii) Find the slope of the line.
A. Away; slope is 20. B. Away; slope is 80. C. Toward; slope is -20. D. Toward; slope is -40.