Solve the equation.
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A. 
B. ?
C. ?
D. ?
E. none of these
Answer: C
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Factor when possible.x3 - x2 - 56x
A. x(x + 8)(x - 7) B. x(x + 7)(x - 8) C. (x2 + 1)(x - 56) D. x3 - x2 - 56
Write an equation using the variable x to represent any unknown quantity. Do not solve the equation.Bob is saving to buy a car. The total amount that he needs is $11,000. The amount that he has saved so far is $5000. Write an equation for which the solution is the amount that Bob needs.
A. 5000 - x = 11,000 B. 11,000 - x = 5000 C. 5000 + x = 11,000 D. 11,000 + x = 5000
Solve the system of equations.x2 + y2 = 181x + y = -19
A. (9, 10), (10, 9) B. (9, -10), (10, -9) C. (-9, -10), (-10, -9) D. (-9, 10), (-10, 9)
Eliminate the parameter t in the following:
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A. 
, 
, 
B. 
, ,
C. 
, ,
D. 
, ,
E. 
, ,