? = central angle of a circle, r = radius of the circle, s = length of the intercepted arc, 
speed, 
speed, and t = time. Find the missing quantity. Give an exact answer unless otherwise indicated.r = 40 centimeters, s = 13 centimeters, ? = ?
A. 0.225 radian
B. 0.325 radian
C. 0.425 radian
D. 0.525 radian
Answer: B
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Solve the problem by integration.An oil storage tank can be described as the volume generated by revolving the area bounded by 
about the x-axis. Find the volume 
of the tank.
A. 95.4 m3 B. 31.8 m3 C. 2.12 m3 D. 655 m3
Use the Binomial Theorem to expand the binomial.(x+ 5y)4
A. x4 + 20x3y + 150x2y2 + 20xy3 + 625y4 B. x4 + 5x3y + 150x2y2 + 250xy3 + 625y4 C. x4 + 4x3y + 6x2y2 + 4xy3 + y4 D. x4 + 20x3y + 150x2y2 + 500xy3 + 625y4
Provide an appropriate response.Suppose Lena deposits $500 at the end of every month into a bank account that pays 5.4% compounded monthly. After five years, how much will she have?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.BJ can overhaul a boat's diesel inboard engine in 20 hours. His apprentice takes 60 hours to do the same job. How long would it take them working together assuming no gain or loss in efficiency?
A. 80 hr B. 15 hr C. 6 hr D. 12 hr