Round the number as indicated.545 to the nearest ten
A. 540
B. 650
C. 560
D. 550
Answer: D
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Solve the problem. Round to the nearest hundredth.The table summarizes the total incomes in the year 2000 of the residents of a particular town. Only those residents with full-time employment are included. Estimate the mean income for fully employed residents of the town in 2000. 
A. $34,554.58 B. $35,245.67 C. $33,517.94 D. $36,944.44
An object of mass m (in grams) attached to a coiled spring with damping factor b (in grams per second) is pulled down a distance a (in centimeters) from its rest position and then released. Assume that the positive direction of the motion is up and the period is T (in seconds) under simple harmonic motion. Develop a model that relates the distance d of the object from its rest position after t seconds.m = 25, a = 14, b = 0.85, T = 3
A. d = -14e-0.85t/50 cos 
B. d = 14e0.85t/50 cos 
C. d = 14e-0.85t/50 cos 
D. d = -14e-0.85t/50 cos 
Convert the rectangular equation to polar form.y2 = 16x
A. r = 
B. r2 = 
C. r = 
D. r2 = 
Graph the equation.
+ 
= 1
A. 
B. 
C. 
D. 