A student needs to have 4 exams in 13 days. In how many ways can this be done if it is known that one of the exams will be taken in the last day?
a. 5,280
b. 17,160
c. 259,459,200
d. 57,120
a. 5,280
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Sketch the graph of the parabola.y = (x - 4)2 + 2
A. 
B. 
C. 
D. 
Solve the problem.Car A (travelling north at 30 mph) and car B (traveling west at 20 mph) are heading toward the same intersection. Car A is 5 miles from the intersection when car B is 6 miles from the intersection. . Find a formula for the distance between the cars as a function of time, using the parametric equations that describe the motion of cars A and B. Using a graphing utility, find the minimum distance between the cars. When are the cars closest? 
A. d = 
; 2.22 mi; 12.46 min
B. d = 
; 441.82 mi; 12.46 min
C. d = 
; 2.22 mi; 0.21 min
D. d = 
; 2.22 mi; 12.46 h
Given the area of a square, find the length of one side.The area of a square conference room is 2401 ft2.
A. 196 ft B. 2401 ft C. 98 ft D. 49 ft
The distance (in feet) that an object will fall in 
seconds is given by the formula 
. How long will it take an object to fall 1,024 feet?
A. 8 sec B. 64 sec C. 6 sec D. 9 sec E. 65 sec