Determine whether the following is a probability model.
A. Yes
B. No
Answer: B
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Solve the problem.Assume that a watermelon dropped from a tall building falls 
in t sec. Find the watermelon's average speed during the first 4 sec of fall and the speed at the instant 
A. 65 ft/sec; 130 ft/sec B. 128 ft/sec; 65 ft/sec C. 64 ft/sec; 128 ft/sec D. 32 ft/sec; 64 ft/sec
An airplane is approaching Los Angeles International Airport at an altitude of 5,280 feet. If the horizontal distance from the plane to the runway is 2.4 miles, use the Pythagorean Theorem to find the diagonal distance from the plane to the runway (see the figure below). (5,280 feet equals 1 mile.)
?
?
?a = 2.4 miles, b = 5,280 feet
?
__________ miles
Fill in the blank(s) with the appropriate word(s).
Write out the sum.
A. 
B. 
+ 2 + 
+ ... + 
C. 4 + 32 + 108 + ... + 
D. 1 + 2 + 3 + ... + n
Perform the operation indicated. Simplify.
? 
A. 
B. 
C. 
D. 