Solve the problem.How long will it take for prices in the economy to double at a 6% annual inflation rate? Use the exponential growth model 
Round to the nearest year.
A. 19 yr
B. 23 yr
C. 10 yr
D. 12 yr
Answer: D
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Integrate the function.
dx
A. 
(x2 + 6)3/2 - 
+ C
B. 
- 
+ C
C. 
(x2 + 6)3/2 + tan-1 
+ C
D. 
(x2 + 6)3/2 - 6
+ C
Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 2t + 4, y = 6t + 14, -? ? t ? ?
A. y = 3x + 2; Entire line, from right to left
B. y = 3x - 2; Entire line, from right to left
C. y = 3x + 2; Entire line, from left to right
D. y = 3x - 2; Entire line, from left to right
Evaluate the expression by first changing the form. Verify the answer by use of a calculator. 
A. 
B. 
C. 2
D. 
Solve the problem.One rope pulls a barge directly east with a force of 52 N, and another rope pulls the barge directly north with a force of 81 N. Find the magnitude of the resultant force acting on the barge.
A. 29 N B. 133 N C. 4200 N D. 96 N