Solve.In your department the ages of the employees are 36, 48, and 51. Find the average age of the three employees.
A. 45
B. 44
C. 43
D. 46
Answer: A
Mathematics
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = -4 sin ?
A. C(4, ?), radius = 4 B. C(4, 3?/2), radius = 4 C. C(2, 3?/2), radius = 2 D. C(2, ?/2), radius = 2
Mathematics
Determine whether 
lie on a straight line.
?
A. no B. yes
Mathematics
Find the probability.One digit from the number 9,848,778 is written on each of seven cards. What is the probability of drawing a card that shows 9, 8, or 4?
A. 
B. 
C. 
D. 
Mathematics
Solve.Let f(x) = 2 + 3
. Find x when f(x) = 11.
A. 8
B. - 
C. -8
D. 
Mathematics