Provide an appropriate response.State the range of the inverse cosine function.
A. [-1, 1]
B. (-?, ?)
C. 
D. 
Answer: C
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Solve the problem.Evaluate 
at (u, v) = (5, 5) for the function w(x, y, z) = xz + yz - z2; x = uv, y = uv, z = u.
A. -10 B. 90 C. 100 D. 0
Provide an appropriate response.The payoff table for three possible courses of action A1, A2, and A3 is given below.pi?A1xi?A2xi?A3xi?.3$70$40$50.2$100$120$110.1$160$140$90.4$80$140$160Which course of action will produce the largest expected value? What is it?
What will be an ideal response?
Solve. Round to the nearest tenth, if necessary.A company increased the number of its employees from 160 to 170. What was the percent increase in employees?
A. 6.3% B. 5.9% C. 51.5% D. 94.1%
Provide an appropriate response.If the instructions for a problem ask you to use the smallest possible domain to completely graph two periods of 
what should be used for Xmin and Xmax? Explain your answer.
What will be an ideal response?