Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 94 feet. The height of the arch 25 feet from the center is to be 8 feet. Find the height of the arch at its center.
A. 8.3 feet
B. 25.37 feet
C. 15.04 feet
D. 9.45 feet
Answer: D
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Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: 
What rainfall produces the maximum number of mosquitoes?
A. 0 in. B. 2 in. C. 16 in. D. 4 in.
Graph the quadratic function. ? f (x) = - 4x2 + 2 ?
A. 
?
B.
?
C.
?
D.
?
If a tree casts a shadow of 11 ft at the same time that a 6-ft person casts a shadow of 1 ft, find the height of the tree (to the nearest foot). ? __________ ft
Fill in the blank(s) with the appropriate word(s).
One way to weigh a very light object is to weigh a large number of the items and then divide to find the weight of one item. Before dividing, the weight of the packaging must be subtracted to find the net weight. Complete the table below. 
?
A. Weight of one item in grams: 1.19 g
Net Weight: 1309 g
Total Weight: 1569 g
B. Weight of one item in grams: 1.19 g
Net Weight: 1335 g
Total Weight: 1309 g
C. Weight of one item in grams: 11.9 g
Net Weight: 13,090 g
Total Weight: 13,116 g
D.
| Weight of one item in grams: 1.19 g |
Total Weight: 1335 g