Solve.A weather forecaster predicts that the temperature will drop 5 degrees each hour for the next 9 hours. If the temperature is 26°F before the temperature starts falling, what is the temperature after the drop?
A. -45°F
B. -19°F
C. 45°F
D. 12°F
Answer: B
Mathematics
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Integrate the function f over the given region.f(x, y) = e2x + 3y over the rectangle 0 ? x ? 1, 0 ? y ? 1
A. 
(e5 - e3 - e2 - 1)
B. 
(e5 - e3 - e2 - 1)
C. 
(e5 - e3 - e2 + 1)
D. 
(e5 - e3 - e2 + 1)
Mathematics
Using the derivative of f(x) given below, determine the intervals on which f(x) is increasing or decreasing.f'(x) = x1/3(x - 7)
A. Decreasing on (0, 7); increasing on (7, ?) B. Decreasing on (0, 7); increasing on (-?, 0) ? (7, ?) C. Decreasing on (-?, 0) ? (7, ?); increasing on (0, 7) D. Increasing on (0, ?)
Mathematics
Evaluate the expression for the given values. If necessary, round to the nearest tenth.
x = 10, y = 8
A. 40 B. 160 C. 80 D. 91
Mathematics
Solve the equation.
= 12.5
A. b = -5.0 B. b = 9.5 C. b = 8.5 D. b = -37.5
Mathematics