Represent the linear system as an augmented matrix.-2x + 4z = 4 6y + 5z = 28 3x + 8y + 3z = 36
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.In how many ways can 5 letters from the word PAYMENT be chosen and arranged?
A. 1260 B. 42 C. 2520 D. 35
Mathematics
Solve the inequality. Express your answer using interval notation.
-1/2 > 0
A. (- ?, 8]
B. (8, ?)
C. (- ?, 8)
D. [8, ?)
Mathematics
Solve the problem.A size 4 dress in Country C is size 42 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find a formula for the inverse of this function.
A. f-1(x) = x - 38
B. f-1(x) = 
C. f-1(x) = x + 38
D. f-1(x) = 
Mathematics
Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.-7x + 6y = -302x + 2y = -10
A. No solution B. (0, -5) C. (0, -4) D. (-1, -4)
Mathematics