Solve the problem.Find the area of the region enclosed by the curve y = x cos x and the x-axis for 
? ? x ? 
?.
A. 13?
B. 11
C. 12?
D. 11?
Answer: C
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Determine the direction angle ? of the vector, to the nearest degree.w = 
A. 286° B. -16° C. 344° D. 106°
Choose a strategy and solve.You are planning a driving vacation, and you want to estimate the cost of the gas. While on vacation, you are planning to drive 4000 miles. Your car gets about 40 miles per gallon, and you estimate that the cost of gas is $1.82 per gallon. What is your estimate for the cost of the gasoline for the the vacation?
A. $145.60 B. $223.86 C. $182.00 D. $227.50
Determine whether the sequence is arithmetic.-1, -5, -9, -13, . . .
A. Arithmetic B. Not arithmetic
Solve the problem by using addition, subtraction, multiplication, or division as needed.Sally is planning a bicycle trip. If she bikes an average of 48 miles a day, find the maximum distance she can cover in 6 days.
A. 54 miles B. 278 miles C. 154 miles D. 288 miles