The general term of a sequence is given. Find the indicated partial sum.an = 5n - 2; S5
A. 65
B. 100
C. 55
D. 85
Answer: A
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Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = 
y = -1
A. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 1, f(x) is not differentiable at 
B. Since limx?-1+ f '(x) = -1 while limx?-1- f '(x) = 0, f(x) is not differentiable at 
C. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = -1, f(x) is not differentiable at 
D. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 0, f(x) is differentiable at 
Integrate the function.
A. -2 ln
+ C
B. 
ln
+ C
C. ln
+ C
D. 
ln
+ C
Choose the expression or equation that is equivalent to the one given.log7 7x
A. 1 B. 7 C. 7x D. x
Divide.
A. x2 - 11 B. x + 11 C. x + 121 D. x - 121