Solve the problem.If the price of a product is given by P(x) = 
+ 1500, where x represents the demand for the product, find the rate of change of price when the demand is 4.
A. 64
B. -64
C. 256
D. -256
Answer: B
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Solve the problem.Let D be the smaller cap cut from a solid ball of radius 9 units by a plane 2 units from the center of the sphere. Set up the triple integral for the volume of D in cylindrical coordinates.
A. 
B. 
C. 
D. 
Evaluate the square root. If the root is irrational then approximate the square root to the nearest hundredth.
A. 0.00 B. 0.02 C. 0.2 D. 2.00
Answer the question.Police use a formula s = S 
, where S is the test-car speed and L is the test-skid length, to find the actual speed s in an accident which left a skid mark of l. Find the speed (nearest whole mph) when 
A. 113 mph B. 52 mph C. 95 mph D. 77 mph
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 