Multiply. Write the answer in simplest form.
? 
A. 12
B. 
C. 
D. 
Answer: C
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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 = x2 y = 
A. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 2, f(x) is not differentiable at 
B. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 1, f(x) is not differentiable at 
C. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 
, f(x) is not differentiable at 
D. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 2, f(x) is differentiable at 
Answer the question.The Humane Society is interested in the average length of the tail of tabby cats. What is the population?
A. All cats with a tail B. All cats C. All tabby cats D. All of these
Solve the equation exactly in the complex number system.x3 + 125 = 0
A. x = 5, x = 
± 
B. x = - 
, x = 
± 
C. x = -5, x = 
± 
D. x = -5, x = 
+ 
, x = - 
- 
Find the magnitude of the vector and the angle 
, 
, that the vector makes with the positive x-axis.
?
?
?
A. 
B. ?
C. ?
D. ?
E. ?