Evaluate the integral.
A. x + 11 ln
+ C
B. x + 9 ln
+ C
C. (x2/2 + 10x) ln
+ C
D. - 
+ C
Answer: B
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Translate the sentence into an equation. Use x to represent the unknown number. Do not solve.If 42 is increased by a number, the result is two-thirds of the number.
A. 42x = 
x
B. 42x = 
+ x
C. 42 + x = 
x
D. 42 + x = 
+ x
Find the derivative of the function by using the rules of differentiation.
?
?
A. 
B. 
C. 
D. 
Use the graph of y = f(x) to state the value of the requested quantity if it exists.
f(x)
A. 0 B. does not exist C. 1 D. 3
Solve the problem.The area of a rectangular wall in a classroom is 225 square feet. Its length is 2 feet shorter than three times its width. Find the length and width of the wall of the classroom.
A. width = 9 ft; length = 25 ft B. width = 9 ft; length = 11 ft C. width = 9 ft; length = 29 ft D. width = 9 ft; length = 15 ft