Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 10 miles per hour and the other at 5 miles per hour. In how many hours will they be 45 miles apart?
A. 1 hour
B. 3 hours
C. 4 hours
D. 5 hours
Answer: B
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Solve the problem.A surveyor measured the length of a piece of land at 100-ft intervals (x), as shown in the table. Use Simpson's Rule to estimate the area of the piece of land in square feet.
A. 27,000 ft2 B. 23,000 ft2 C. 22,500 ft2 D. 22,000 ft2
Find all the second order partial derivatives of the given function.f(x, y) = 
A. 
= - 
; 
= 
; 
= 
= 
B. 
= - 
; 
= 
; 
= 
= 
C. 
= - 
; 
= 
; 
= 
= 
D. 
= 
; 
= - 
; 
= 
= 
Match the given equation with one of the graphs.
- 
= 1
A. 
B. 
C. 
D. 
Find the intercepts of the function f(x).f(x) = -x2(x + 6)(x2 + 1)
A. x-intercepts: -6, -1, 0; y-intercept: 6 B. x-intercepts: -6, -1, 0, 1; y-intercept: 0 C. x-intercepts: -6, 0; y-intercept: 0 D. x-intercepts: -6, -1, 0; y-intercept: -6