Determine whether the function is a probability density function over the given interval.f(x) = 
ex, [0, e]
A. Yes
B. No
Answer: B
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Solve.The altitude above sea level of an airplane just after taking off from an airport on a high plateau is given by the linear function h(t) = 1100t + 3114, where h(t) is in feet and t is the time in minutes since takeoff. Find the altitude of the airplane after 7 minutes.
A. 10,714 feet B. 10,914 feet C. 10,814 feet D. 7700 feet
Express the phrase as a ratio in lowest terms.24 people to 9 people
A. 
B. 
C. 
D. 
?A and ?B are the acute angles of a right triangle ?ABC. List as many relationships between the sides, the angles and the sines, cosines and tangents of the angles as possible.
What will be an ideal response?
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.
+ 
A. 
B. 
C. 
D. 