Find the domain of the composite function f ? g.f(x) = 
; g(x) = 3x + 15
A. {x 
B. {x 
C. {x 
D. {x 
Answer: B
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Solve the problem.In order to buy a $23,000 car, you put down $3500 and take out a loan on the balance. To pay off the loan, you pay $400.83 per month for the following 72 months. How much more will you end up paying for the car than the original price of $23,000? Round to the nearest dollar.
A. $9360.00 B. $32,360.00 C. $5860.00 D. $28,860.00
Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z. 5x - y + z = 8 7x + y + z = 6
A. (-z + 3, 4z + 7, z)
B. 
C. no solution
D. 
Use the given table for y = ax2 + bx + c to solve ax2 + bx + c < 0 or ax2 + bx + c > 0, as indicated.y = x2 + 16x; ax2 + bx + c > 0
A. -4 < x < 0 B. -16 < x < 0 C. x < -4 or x > 0 D. x < -16 or x > 0
Factor completely.x5y3 - x4y5
A. x5y3(1 - xy2) B. x4y3(x - y2) C. x5y5(x - y2) D. x4y3(x - y)(x + y)