Solve the problem.The temperature at 5:00 was -6° C. Four hours later, it was -11° C. What was the change in temperature?
A. -5° C
B. 5° C
C. -17° C
D. 17° C
Answer: A
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Solve the formula for the indicated variable.r = 
for S
A. S = 16?2r2
B. S = 4?r
C. S = 
D. S = 4?r2
Evaluate the double integral
?
?
for the given function f(x, y) and the region R.
?
; R is bounded by x = 0, x = 1, y = 0 and y = x.
?
A. 2.5 B. 3.5e C. -3.5 D. -2.5
Determine whether the statement is true or false.Suppose that you are using the simplex method to solve a canonical linear programming problem in which each entry in the vector b is positive. If you obtain a tableau which contains just one negative entry in the bottom row and no positive entry aik above it, then the objective function is unbounded and no optimal solution exists.
A. True B. False
Evaluate the sum.
A. 20 B. 21 C. 16 D. 22