Determine the symmetries of the curve.r2 = 7 cos 5?
A. x-axis, y-axis, origin
B. y-axis only
C. Origin only
D. x-axis only
Answer: A
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Solve the problem.The average life (in months) of an automobile battery is 4 months. If the battery life is exponentially distributed, find the probability that the life of a randomly selected battery is greater than 6 years.
A. 0.0558 B. 0.1942 C. 0.2231 D. 0.7769
Perform the indicated operation(s). Simplify if possible.
- 9x
A. 
B. 
C. 
D. 
Solve the problem.This chart shows the number of meals served in a restaurant during each of the past 4 months. Assume that the information in the chart defines a function with the name g. State the domain of g.
A. {(3500, January), (3557, February), (3541, March), (3562, April)} B. {January, February, March, April} C. {(January, 3500), (February, 3557), (March, 3541), (April, 3562)} D. {3500, 3557, 3541, 3562}
Perform the matrix operation. 
+ 
=
A. 
B. 
C. 
D. 