Find the indicated probability.The managers of a corporation were surveyed to determine the background that leads to a successful manager. Each manager was rated as being either a good, fair, or poor manager by his/her boss. The manager's educational background was also noted. The data appear below:  Educational BackgroundIf a manager is selected at random, what is the probability that he or she is either a good manager or has an advanced degree? Give your answer as a fraction.

A.
B.
C.
D.


Answer: B

Mathematics

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Answer the question.What is the range of the function y =log5?

A. y ? 0 B. All real numbers C. y > 0 D. y ? 5

Mathematics

Solve the problem by integration.An object at the end of a spring is immersed in liquid. Its velocity (in cm/sec) is then described by the equation  where t is the time (in sec). Find the displacement s as a function of t if   for t = 0 sec.

A. s = e-3t + e-9t - 
B. s = -e-3t + e-9t + 
C. s = -e-3t - e-9t - 
D. s = -e-3t - e-9t + 

Mathematics

Factor completely. If the polynomial is prime, state so.x10 - 25y8

A. (x5 - 5y4)2 B. (x5 - 5y4)(x5 + 5y4) C. (x5 + 5y4)(x5 - 5y2)(x5 + 5y2) D. prime

Mathematics

Determine the average rate of change for the function.f(x) = x - 2

A. 2
B.
C. - 
D. -2

Mathematics