Evaluate the integral.
A. ln
+ C
B. ln
+ C
C. et ln
+ C
D. ln
+ C
Answer: A
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Solve the problem.If the price charged for a candy bar is p(x) cents, then x thousand candy bars will be sold in a certain city, where p(x) = 141 - 
. How many candy bars must be sold to maximize revenue?
A. 1,974 candy bars B. 1,974 thousand candy bars C. 3,948 thousand candy bars D. 3,948 candy bars
Using Green's Theorem, find the outward flux of F across the closed curve C.F = (x - ex cos y)i + (x + ex sin y)j; C is the lobe of the lemniscate r2 = sin 2? that lies in the first quadrant
A. 0
B. 
C. 1
D. 
Solve the problem.Alicia sold $3786 in paintings at the art fair. If she sold 6 paintings total, and they all sold for the same amount, what was the price of one painting?
A. $646 B. $631 C. $667 D. $531
Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes B. Yes; no C. No