Solve the problem.One student is selected at random from a group of 8 freshmen, 6 sophomores, 7 juniors, and 7 seniors.Find the probability that the person selected is a freshman.
A. 
B. 
C. 
D. 
Answer: C
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Describe how the sentence is ambiguous.There was a 15% decrease in donations to the homeless shelter between 1996 and 2000, a year in which $50,000 was collected.
What will be an ideal response?
Solve.The length of a rectangular room is 4 feet longer than twice the width. If the room's perimeter is 188 feet, what are the room's dimensions?
A. Width = 45 ft; length = 49 ft B. Width = 30 ft; length = 64 ft C. Width = 60 ft; length = 128 ft D. Width = 35 ft; length = 74 ft
Solve the problem.Consider the quadratic model h(t) = -16t2 + 40t + 50 for the height (in feet), h, of an object t seconds after the object has been projected straight up into the air. Find the maximum height attained by the object. How much time does it take to fall back to the ground? Assume that it takes the same time for going up and coming down.
A. maximum height = 75 ft; time to reach ground = 2.5 seconds B. maximum height = 50 ft; time to reach ground = 2.5 seconds C. maximum height = 50 ft; time to reach ground = 1.25 seconds D. maximum height = 75 ft; time to reach ground = 1.25 seconds
Use the grid to graph the function. Find the limit, if it exists
f(x), f(x) = 2x + 3
A. 9 B. 12 C. 15 D. does not exist