Solve the logarithmic equation.log (4 + x) - log (x - 4) = log 3
A. 
B. 8
C. - 8
D. ?
Answer: B
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 = 
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 
Mathematics
Multiply.-18(-12)
A. 216 B. 228 C. -234 D. 234
Mathematics
A. 
B. 
C. 
D. 
E. None of these
Mathematics
Find the range of the set of numbers.0, -10, 5, 1, -2
A. 15 B. -15 C. -1 D. 5
Mathematics