Solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable. x -8y + z = 53x - y + 2z = 6
A. 
B. ?
C. 
D. 
Answer: D
Mathematics
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Rewrite the rational expression with the indicated denominator.
= 
A. 
B. 
C. 
D. 
Mathematics
Solve the direct variation.Suppose x varies directly as y. If x = 4 when y = 24, what is the value of y when 
A. 81 B. 54 C. 36 D. 16
Mathematics
Use the Factor Theorem to determine whether x - c is a factor of f(x).f(x) = x4 - 21x2 - 100; x - 5
A. Yes B. No
Mathematics
Solve the absolute value equation.
= 20
A. {-85} B. {115, -85} C. {115} D. {85, -115}
Mathematics