Solve the system by using the inverse of the coefficient matrix. x + y + z = 4 x - y + 4z = -195x + y + z = 24
A. No solution
B. (-5, 4, 5)
C. (-5, 5, 4)
D. (5, 4, -5)
Answer: D
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Solve the problem.Find the extreme values of 
subject to 
and 
A. Maximum: 
at 
minimum: - 
at 
B. Maximum: 
at 
minimum: - 
at 
C. Maximum: 
at 
minimum: - 
at 
D. Maximum: 
at 
minimum: - 
at 
Give the equation of the vertical asymptote(s) of the rational function.F(x) = 
A. x = 3, x = -3 B. x = 9 C. None D. x = -9
Solve the problem.If the average cost per unit C(x) (in dollars) to produce x units of plywood is given by C(x) = 
, what is the unit cost for 40 units?
A. -$10.00 B. $30.00 C. $0.75 D. $15.00
Solve. Write the answer as a mixed number in simplest form.Keith Wood has 24
feet of rope. He cuts off a 10
-foot length and then a 5
-foot length. If he now needs a 9-foot piece of rope, will the remaining piece do?
A. Yes, there is still 
of a foot left.
B. No, he will be 
of a foot short.