Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = 2t cos t, y = 2t sin t, 0 ? t ? 3?
A. L = 20?
B. L = 61.51
C. L = 92.26
D. L = 61.51
Answer: C
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A. -
B. 
C. 
D. -
Solve the radical equation, and check all proposed solutions.
- 
= 3
A. {3, 8} B. {-2} C. {2, 38} D. {2}
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Solve.A motorist's car was towed 8 miles. The cost of having a car towed depends on the number of miles the car is towed. The line of best-fit is cost = 2(miles towed) + 80. If the motorist's towing distance is analyzed, the cost residual is -10. What was the total cost for the motorist's car to be towed?
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