Find the equation of the line tangent to the graph of f at the indicated value of x.f(x) = 2ex; x = 0
A. y = 2x - 2
B. y = x + 2
C. y = 2x + 2
D. y = 2x
Answer: C
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Find the nth term of the geometric sequence with the given values.3, -9k, 27k2, . . . ; n = 5
A. -729k5 B. 243k5 C. -729k4 D. 243k4
Solve.An express train travels 267 miles between two cities. During the first 
of a trip, the train traveled through mountainous terrain. The train traveled 
per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 7 hours, find the speed of the train on level terrain.
A. 51 mph B. 41 mph C. 31 mph D. 21 mph
The Leslie matrix for a population of birds is 
The population vector for year 1 is 
(a) Estimate the population vector for year 2. (b) Estimate the population vector for year 3.
X is Normal(?4, 3).
Find E ( X ), Var ( X ), and SD( X ) for the given random variable