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 = sin 3t, y = cos t, 0 ? t ? 2?
A. L = 10.19
B. L = 13.07
C. L = 2?
D. L = 13.07
Answer: B
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Write the standard form of the whole number that is expressed in word form in the sentence.A certain exotic sportscar costs three hundred twelve thousand, 
ninety-seven dollars.
A. 312,297 B. 312,297,000 C. 31,227 D. 3,202,970
Complete.223.2 mm = 
dm
A. 223.2 B. 22,320 C. 2232 D. 2.232
Solve. Round to the nearest tenth.Juliet runs out of gas in Barnhaven, South Carolina. She walks 8 mi west and then 2 mi south looking for a gas station. How far is she from her starting point?
A. 68 mi B. 8.2 mi C. 3.2 mi D. 7.7 mi
Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: 
What rainfall produces the maximum number of mosquitoes?
A. 9.5 in. B. 361 in. C. 0 in. D. 19 in.