Solve the problem.A signal is made by placing 3 flags, one above the other, on a flag pole. If there are 8 different flags available, how many possible signals can be flown?
A. 56
B. 24
C. 512
D. 336
Answer: D
Mathematics
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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) = 2 while limx?1- f '(x) = 
, f(x) is not differentiable at 
B. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 2, f(x) is not differentiable at 
C. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 1, f(x) is not differentiable at 
D. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 2, f(x) is differentiable at 
Mathematics
Find a. If necessary, round your answer to the nearest hundredth.
A. 3.64 B. 1.99 C. 3.48 D. 1.04
Mathematics
Use the product rule to multiply.
? 
A. 8
B. 1
C. 1x
D. 
Mathematics
Solve the equation.
+ 
= -1
A. 5
B. 0
C. No solution
D. - 
Mathematics