1

The graph above shows the height, in feet, of water in a tank over a particular ten minute period. At the beginning of the ten minutes, a hose at the top of the tank was turned on. Four minutes later, the hose was turned off. Three minutes after that, a drain at the bottom of the tank was opened.

On a different day, the same tank is filled with water to a height of four feet. Then, a student opens the drain, turns on the hose, and begins a timer simultaneously. How much time elapses before the tank is empty?

A)
B)
C)
D)
2

The figure above shows the graph of y=(x+4)(x+a)(x+b) in the xy plane. Which of the following statements must be true?
  1. a=b
  2. a>0
  3. b<4
A)
B)
C)
D)
3 A certain bowl contains only red, blue, and yellow candies. The ratio of red candies to blue candies is 7:4, and the ratio of red candies to yellow candies is 2:3. There are 104 more yellow candies than blue candies. What is the total number of candies in the bowl?

4

The dot plots above represent three different distributions of scores between one and five. If x equals the standard deviation of Set I, y equals the standard deviation of Set II, and z equals the standard deviation of Set III, which of the following inequalities is true?

A)
B)
C)
D)
5

A golfer went to the practice range with three clubs: Club A, Club B, and Club C. The golfer hit 30 balls in total—ten balls with each club. The table above shows the distance each ball traveled. What is the median distance, in yards, traveled by the 30 practice balls hit?


 

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