Find the slope of the line.x = 10
A. Not defined
B. 10
C. 0
D. 1
Answer: A
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Find the indicated product.(a + 7b)(x + y)
A. ax + 9bx + ay + 8by B. ax + 7bx + ay + by C. ax + 7bx + ay + 7by D. ax + 8bx + ay + 7by E. ax + bx + ay + 8by
Find the sum of the series.
A. 
B. 
C. 
D. 
Solve the problem.The chart represents the amount of fuel consumed by a machine used in manufacturing. The machine is turned on at the beginning of the day, takes a certain amount of time to reach its full power (the point at which it uses the most fuel per hour), runs for a certain number of hours, and is shut off at the end of the work day. The fuel usage per hour of the machine is represented by a periodic function. When does the machine first reach its full power?
A. After 4 hours B. After 7 hours C. After 2 hours D. After 14 hours