Solve the problem.An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 30 feet above ground (the major axis). What should the span of the bridge be (the length of its minor axis) if the height 25 feet from the center is to be 11 feet above ground?
A. 26.87 ft
B. 53.74 ft
C. 136.36 ft
D. 39.8 ft
Answer: B
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Solve the problem.Suppose that you begin with a red bucket containing 12 red marbles and a yellow bucket containing 12 yellow marbles. You move three marbles from the red bucket to the yellow bucket, and then you move any four marbles from the yellow bucket to the red bucket. Which is greater, the number of yellow marbles in the red bucket or the number of red marbles in the yellow bucket?
What will be an ideal response?
Solve the problem.A company adopts an advertising campaign to weekly add to its customer base. It assumes that as an average fifty percent of its new customers, those added the previous week, will bring in one friend, but those who have been customers longer will not be very effective as recruiters and can be discounted. A media campaign brings in 10,000 customers initially. What is the expected total number of customers with whom the company can expect to have dealings?
A. 20,000 customers B. The sum diverges to infinity. C. 15,000 customers D. 30,000 customers
Write the following as a rate in lowest terms.110 miles on 6 gallons
A. 
B. 
C. 
D. 
Solve the problem.Edwin has a board that is 4.5 feet long. He wants to cut the board into pieces that are 1.5 feet long. How many 1.5-foot pieces will he get from the large board?
A. 2 pieces B. 4 pieces C. 30 pieces D. 3 pieces