Provide an appropriate response.If y = (x2 + 5x - 1)e2x, then y' =
A. (x2 + 7x + 4)e2x.
B. (2x + 5)32x.
C. 
.
D. (3x2 - 10x + 7)e2x.
E. (2x2 + 12x + 3)e2x.
Answer: E
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Find the median for the given sample data.The salaries of ten randomly selected doctors are shown below.
Find the median salary.
A. $269,000 B. $177,000 C. $170,000 D. $242,000
Work the application and answer with a complete sentence.What is the difference between a daytime temperature of 11° F and a nighttime temperature of -2° F?
A. The difference in temperature is 13°F. B. The difference in temperature is -13°F. C. The difference in temperature is 9°F. D. The difference in temperature is -9°F.
Write the following in exponential form. Assume that all variables represent positive values.
A. 
B. (2t - 8)7/8
C. (2t - 8)-7/8
D. (2t - 8)8/7
For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j + 7k; normal plane at t = 1.5?.
A. y = -2 B. x - y + z = -2 C. x + y + z = -2 D. y = 2