Find the derivative.g(x) = 2x2e-x
A. 4xe-x(1 - x)
B. 2xex(2 - x)
C. 2xe-x(2 - x)
D. 2xe-x(x + 2)
Answer: C
Mathematics
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Find the slope of the line tangent to the graph of the function at the given value of x.y = -4 - x2; x = 7
A. -2 B. -14 C. 7 D. 14
Mathematics
The scores on a 30-point multiple-choice exam are given in the following frequency table:
The mean score on the exam is
A. 25. B. 26.5. C. 25.5. D. 26. E. none of these
Mathematics
Add.9985 + 8134
A. 18,109 B. 18,019 C. 17,119 D. 18,119
Mathematics
Find the slope and y-intercept of the line.-5x + 7y = 2
A. slope = 
; y-intercept = - 
B. slope = 5; y-intercept = 13
C. slope = 
; y-intercept = 
D. slope = 
; y-intercept = 
Mathematics