Find f'(x) at the given value of x.f(x) = x2 - 9x - 1; Find f'(-5).
A. 69
B. -19
C. -10
D. -20
Answer: B
Mathematics
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Evaluate the integral.
A. 
sin-1 
+ C
B. 
ln |x| + C
C. tan-1 
+ C
D. 
tan-1 
+ C
Mathematics
Convert the given equation to parametric equations. Answers may vary.2x + 9y = 7
A. x = t, y = 
+ 
t
B. x = t, y = 
- 
t
C. x = t, y = 7 - 2t
D. x = t, y = 
- 
t
Mathematics
Solve the problem.A portion of Road A declines steadily for 200 feet over a horizontal distance of 2400 feet. A portion of Road B declines steadily for 360 feet over a horizontal distance of 4200 feet. Which road is steeper?
A. Road B B. Road A C. Neither
Mathematics
Solve the problem.Find the sum of the first 11 terms of the arithmetic sequence 1, 3, 5, . . . .
A. 121 B. 144 C. 100 D. 132
Mathematics