Evaluate the definite integral.
A. - 
B. 
C. 
D. 
Answer: C
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Evaluate the expression using the given values.
; x = -12, y = 5
A. 
B. 13
C. 15
D. 17
Change the polar coordinates (r, ?) to rectangular coordinates (x, y).(-6, ?)
A. (-6, 0) B. (0, 6) C. (0, -6) D. (6, 0)
Solve the problem.Two trains leave a train station at the same time. One travels east at 9 miles per hour. The other train travels west at 12 miles per hour. In how many hours will the two trains be 191.1 miles apart?
A. 9.6 hr B. 9.1 hr C. 18.2 hr D. 4.6 hr
Provide an appropriate response.Why is dy not generally equal to ?y?
A. Because ?y is the slope of f(x) at x + ?x , whereas, dy is the slope of the line tangent to f(x) at x = x. B. Because ?y is the change in f(x) over an interval x to x + ?x , whereas, over the same interval, dy is the rise of the line tangent to f(x) at x = x. C. Because dy is the change in f(x) over an interval x to x + ?x , whereas, over the same interval, ?y is the rise of the line tangent to f(x) at x = x. D. Because ?y is the slope of f(x) at x + ?x , whereas, dy is the slope of f(x) at x + ?x.