Simplify the expression. Assume that all variables are positive.
A. 
B. 
C. 
D. 0
Answer: B
Mathematics
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Determine the order of the matrix.
A. 2 × 4 B. 2 × 3 C. 3 × 2 D. 4 × 2
Mathematics
Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (2x + 3)x
A. x ln (2x + 3)
B. (2x + 3)x
C. (2x + 3)x
D. ln (2x + 3) + 
Mathematics
Find the inverse of the function.f(x) = (x - 19)2, x ? 19
A. f-1(x) = - 
B. f-1(x) = x2 + 19
C. f-1(x) = 
+ 19
D. f-1(x) = 
Mathematics
Add or subtract. 13
- 
A. 12
B. 13
C. 12
D. 11
Mathematics