Find the x-value of all points where the function has relative extrema. Find the value(s) of any relative extrema.f(x) = 2xe-x
A. 
, relative maximum
B. (-1, -2e), relative minimum
C. 
, relative minimum
D. (-1, -2e), relative maximum
Answer: A
Mathematics
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Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.
a = b = 4 m
A. 61 m B. 2.6 m C. 6.8 m D. 7.8 m
Mathematics
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. -1
B. -24
C. 
D. 
Mathematics
Determine whether f is a geometric sequence.
A. Yes B. No
Mathematics
Find all values of a for which f(a) is the indicated value.f(x) = 
- 
; f(a) = 4
A. 8 B. - 2 C. 1 D. 2
Mathematics