Solve the problem by solving a system of equations graphically.A rectangle is 6 inches longer than it is wide. Its perimeter is 28 inches. Find the length and width of the rectangle.
A. 8 in. × 2 in.
B. 20 in. × 4 in.
C. 20 in. × 8 in.
D. 10 in. × 4 in.
Answer: D
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Use interval notation to describe the set of numbers.Every item in Albert's Variety store costs less than $3.12.
A. [1, 3.12) B. [0, 3.12) C. [0, 3.12] D. [1, 3.12]
Explain why the function is not a polynomial function.f(x) = 
What will be an ideal response?
Determine if the two lines are parallel, perpendicular, coinciding, or only intersecting.3x - 8y = -1032x + 12y = 11
A. parallel B. perpendicular C. intersecting D. coinciding
Select the region determined by the constraints. Then find the maximum value of the objective function (if possible) and where it occurs, subject to the indicated constraints. ? Objective function: ? z = 3x + 2y ? Constraints: ? x ? 0 ?y ? 0 5x + 2y ? 20 5x + y ? 10 ? ?
A. 
Maximum at (0, 10): 20
B.
Maximum at (2, 0): 6
C. ?
Maximum at (10, 0): 13
D. ?
Maximum at (0, 4): 7
E. ?
Maximum at (4, 0): 12