Solve the problem. Over a period of 1 year, the price P of a certain commodity follows the model 
where P is in dollars per pound and t is in months. Assume that 
and 
Find the particular solution P.
A. P = 3e-0.3t + 13e0.2t;
B. P = 3e0.2t + 13e-0.3t;
C. P = 16e-0.3t + 1.7e0.2t;
D. P = 3e0.3t + 13e-0.2t;
Answer: A
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Use the graph to evaluate the limit.
f(x)
A. ?
B. - 
C. -1
D. 
Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the first-quadrant portion of the circle 
if the density of the rod is 
A. 
= 3, 
= 3
B. 
= 2, 
= 2
C. 
= 
, 
= 
D. 
= 
, 
= 
Provide an appropriate response. Find the radius of a circle that has a central angle of 32° 44' 12", which cuts an arc length of 56 cm.
A. 307.8 cm B. 98.0 cm C. 1.7 cm D. 5.4 cm
Solve the problem.A drill press cost $5,000 and has an estimated life of 8 years and a scrap value of $300. Find the book value at the end of 6 years using the straight-line method. Round to nearest dollar.
A. $1,475 B. $3,525 C. $1,250 D. $4,413