Solve.8x(x - 4) - 100 = 5x(x - 9)
A. 
, -4
B. -25, 4
C. - 
, -4
D. - 
, 4
Answer: D
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Write a system of equations associated with the augmented matrix. Do not try to solve.
= 
A. 2x + y = -3 x + 2y = 2 -5x - 5y = 2 B. 2x + y + z = -3 x - 5y = 2 C. 2x = -3 x + y = 2 -5x - 5y = 2
Find the perimeter. Use ? ? 3.14. Round the answer to the nearest te nth.
A. 37.4 cm B. 31.4 cm C. 46.8 cm D. 40.8 cm
Determine whether the relation is or is not a function.DomainRange 
A. Function B. Not a function
Find a formula for the inverse of the function described below.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group, and C(x) is in dollars.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 