?Solve the system of linear equations
?
?using the inverse matrix 
.
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Factor the polynomial completely using the grouping method.63x3 - 639x2 + 648x
A. 9x(x - 9)(7x - 8) B. x(9x - 9)(7x - 8) C. 9x(x + 9)(7x + 8) D. prime
Find the points on the curve 
where the tangent is horizontal.
What will be an ideal response?
Solve the problem.A rectangular piece of tin has an area of 1080 square inches. A square of 3 inches is cut from each corner, and an open box is made by turning up the ends and sides. If the volume of the box is 2106 cubic inches, what were the original dimensions of the piece of tin?
A. 24 in. by 45 in. B. 27 in. by 48 in. C. 18 in. by 36 in. D. 21 in. by 42 in.
Solve the linear inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.5x - 3 > 4x - 2
A. [1, ?)
B. (-5, ?)
C. (-?, 1]
D. (1, ?)