Find the indicated vector.Let u = 
, v = 
. Find u - v.
A. 
B. 
C. 
D. 
Answer: D
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Use Newton's Law of Cooling to solve the problem.A dish of lasagna is taken out of the oven into a kitchen that is 70°F. After 8 minutes, the temperature of the lasagna is 306.1°F. 16 minutes after being taken out of the oven its temperature is 253°F. What was the temperature of the lasagna when it was taken out of the oven? Round your answer to the nearest degree.
A. 390°F B. 360°F C. 425°F D. 375°F
Evaluate the double integral over the given region.
R = {(x, y): 8 ? x ? 9, 8 ? y ? 9}
A. ln 
B. 
2
C. 
D. 
2
Solve the problem.At what points on the graph of f(x) = 2x3 - 3x2 - 71x is the slope of the tangent line equal to 1?
A. (4, -204), (1, -72) B. (0, 0), (-3, 132) C. (-4, 108), (-204, -186) D. (4, -204), (-3, 132)
Factor completely using the trial and error method to factor trinomials. If unfactorable, indicate that the polynomial is prime.15z2 - 2z - 8
A. (3z - 2)(5z + 4) B. prime C. (3z + 2)(5z - 4) D. (15z + 2)(z - 4)