Solve the problem.The sprocket assembly on a bicycle consists of a chain and two sprockets, one on the pedal and the other on the rear wheel. If the sprocket on the pedal is 
in diameter, the sprocket on the rear wheel is 
in diameter, and the rear wheel is 
in diameter, how fast is the bicycle traveling in miles per hour when the cyclist is pedaling at the rate of 
style="vertical-align: -4.0px;" /> per second? Round your answer to the nearest tenth mph.
A. 12.4 mph
B. 7.4 mph
C. 8.4 mph
D. 10.4 mph
Answer: C
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = ti + (
t + 
t2)k
A. 0
B. 
C. 
D. ?
Solve the problem.Use a tree to show the employee relationships in Balkan Imports, Inc. President Bohac has a vice president: Bowman. Bowman has two department heads working for him: Leonard and Moutos. Leonard is in charge of two managers: Karlov and McIntyre. Moutos is in charge of one manager: Sams.
A. 
B. 
C. 
D. 
There were 31,000 people at a ball game in Los Angeles. The day's receipts were $205,000. How many people paid $13 for reserved seats and how many paid $4 for general admission?
A. 20,250 paid $13 and 10,750 paid $4 B. 10,750 paid $13 and 20,250 paid $4 C. 9,000 paid $13 and 22,000 paid $4 D. 22,000 paid $13 and 9,000 paid $4
Solve.A town has a population of 10,000 people and is increasing by 10% every year. What will the population be at the end of 6 years?
A. 7716 B. 16,000 C. 17,716 D. 16,105