Determine if the given function y = f(x) is a solution of the accompanying differential equation.y' - y = 9exy = e9x + 9xex

A. Yes
B. No


Answer: B

Mathematics

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Solve.In 1996, an outbreak of a disease infected 11 people in a large community. By 1997, the number of those infected had grown to 35. Find an exponential growth function that fits the data. (Round decimals to three places.)

A. N(t) = 11e1.157t, where t is the number of years after 1997. B. N(t) = 11e11.57t, where t is the number of years after 1996. C. N(t) = 11e11.57t, where t is the number of years after 1997. D. N(t) = 11e1.157t, where t is the number of years after 1996.

Mathematics

Find the extreme values of the function and where they occur.y = x2e-x + 2xe-x

A. Minimum value is 2e (1 -  ) at x = -; maximum value is 2e- (1 +  ) at x = .
B. Minimum value is 2e (1 -  ) at x = -; no maximum value.
C. Maximum value is 2e- (1 +  ) at x = ; no minimum value.
D. None

Mathematics

Find the general term of the arithmetic sequence., . . .

A. an = 
B. an = 
C. an = 
D. an = 

Mathematics

Solve the proportion. = 

A. 12 
B. 10
C. 2 
D. 25

Mathematics