Solve the problem.Dombro Construction Company needs to cut an arch for the top of a doorway. The arch needs to be 10 feet wide and 2 feet high. The arch will be a section of a circle, drawn using a stretched string with a pencil attached at the end as a compass. Using the coordinate system as shown in the drawing, find the y-coordinate of the point on the y-axis that would be the center of the circle. Round to the hundredths place.
?a = 5
A. 5.83
B. 52.5
C. 4.57
D. -5.25
Answer: D
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Suppose that for X = net amount won or lost in a lottery game, the expected value is E(X) = ?$0.50. What is the correct interpretation of this value?
A. The most likely outcome of a single play is a net loss of 50 cents. B. A player will have a net loss of 50 cents every single time he or she plays this lottery game. C. Over a large number of plays the average outcome for plays is a net loss of 50 cents. D. A mistake must have been made because it's impossible for an expected value to be negative
Four players (A, B, C, and D) agree to divide the 12 items below using the method of markers. The players' bids are as indicated.
Item 5
A. goes to A. B. goes to B. C. goes to C. D. goes to D. E. is left over.
Solve.The number G of gears a machine can make varies directly as the time T it operates. If it can make 6836 gears in 5 hours, how many gears can it make in 2 hours?
A. 6843 gears B. 0.0015 gears C. 2734.4 gears D. 1367.2 gears
Subtract and simplify.
- 
A. 
B. 
C. 
D. 