Find the axis of symmetry of the given function.f(x) = - 9x + x2 + 4
A. x = 9
B. x = 
C. x = - 
D. x = 
Answer: D
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Write a system of three inequalities that describe the constraints in the problem.An office manager is buying used filing cabinets. Small file cabinets cost $4 each and large file cabinets cost $11 each, and the manager cannot spend more than $57 on file cabinets. A small cabinet takes up 6 square feet of floor space and a large cabinet takes up 9 square feet, and the office has no more than 63 square feet of floor space available for file cabinets. The manager must buy at least 6 file cabinets in order to get free delivery. Let x = the number of small file cabinets bought and y = the number of large file cabinets bought.
A. 4x + 11y ? 57; 9x + 6y ? 63; x ? 6 B. 4x + 11y ? 57; 6x + 9y ? 63; x + y ? 6 C. 4x + 11y ? 57; 6x + 9y ? 63; x + y ? 6 D. 4x + 11y ? 57; 6x + 9y ? 63; y ? 6
Solve. Give your answer as a mixed numeral.The floor of a rectangular room is to be tiled with 
foot square tiles along a 12
foot wall. How many tiles will be needed along the wall?
A. 36
tiles
B. 37
tiles
C. 39 tiles
D. 4
tiles
Evaluate the expression.
3
A. 
B. 3
C. 
D. 
Using your calculator, find (3 places)
80,172 ð 102 ÄÄÄÄÄÄÄÄÄÄÄÄ 1.29