Simplify the expression. Assume that all variables represent positive real numbers.
-2
A. 
B. 
C. 
D. 
Answer: D
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Solve the problem.In the formula N = Iekt, N is the number of items in terms of an initial population I at a given time t and k is a growth constant equal to the percent of growth per unit time. There are currently 63 million cars in a certain country, increasing by 5.1% annually. How many years will it take for this country to have 86 million cars? Round to the nearest year.
A. 5 years B. 3 years C. 61 years D. 6 years
Write the number in standard notation.There are 2.964 × 104 miles of highways, roads, and streets in a certain state.
A. 2964 B. 2,964,000 C. 29,640 D. 296,400
Use a graphing utility to obtain the plane curve represented by the given parametric equations.Cycloid: x = 3(t - sin t), y= 3(1 - cos t), 0 ? t ? 6?
A. 
B. 
C. 
D. 