Find an equation for the ellipse described.Center (0, 0); major axis vertical with length 12; length of minor axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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Solve the problem.A ball is thrown vertically upward from the top of a building 144 feet tall with an initial velocity of 128 feet per second. The distance s (in feet) of the ball from the ground after t seconds is 
After how many seconds will the ball pass the top of the building on its way down?
A. 144 sec B. 7 sec C. 8 sec D. 10 sec
Mathematics
X is Binomial (6, 0.7).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable
Mathematics
Three people are selected from a group of 8 freshmen and 6 sophomores. The probability 2 freshmen and 1 sophomore are selected is:
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 
B. 
C. 
D. none of these
Mathematics