Solve the problem.Bob wants to fence in a rectangular garden in his yard. He has 80 feet of fencing to work with and wants to use it all. If the garden is to be x feet wide, express the area of the garden as a function of x.
A. A(x) = 40x - x2
B. A(x) = 41x - x2
C. A(x) = 39x - x2
D. A(x) = 42x2 - x
Answer: A
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Find the vertex and axis of symmetry of the graph of the function.f(x) = 3x2 - 6x + 1
A. (-2, 25) ; x = -2 B. (2, 7) ; x = 2 C. (1, -2) ; x = 1 D. (-1, 10) ; x = -1
In 
, 
= 47°, 
= 3y - 7, and 
= 2(y + 10). Find the value of y.
What will be an ideal response?
Perform the matrix operation.Given A = 
and B = 
, find 2A + 3B.
A. 
B. 
C. 
D. 
A warehouse supervisor is told to ship at least 50 packages of gravel that weigh 55 pounds each and at least 40 bags of stone that weigh 70 pounds each. The maximum weight capacity of the truck to be used is 9,500 pounds. Find and graph a system of inequalities describing the numbers of bags of stone and gravel that can be shipped. ?
A. 
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B. ?
C.
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D. ?
E.
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