Perform the indicated operation and simplify.
? 
A. 4z
B. 
C. 
D. 
Answer: A
Mathematics
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Rationalize the denominator.
A. 
(
+ 1)
B. 
(
+ 1)
C. 
(
+ 1)
D. 
(
- 1)
Mathematics
Determine whether the equation defines y as a function of x. y = 
A. function B. not a function
Mathematics
Solve the system of equations by finding the reduced row echelon form for the augmented matrix. x - y + 2z = 12x+ z = 0 x + 5y + z = -5
A. No solution B. (0, -1, 0) C. (0, -1, 1) D. (0, 0, -1)
Mathematics
Find the average rate of change of the function as x changes from a to b.h(x) = 
; a = -2, b = 3
A. 0
B. 
C. 
D. - 
Mathematics