Solve the problem.Julie and Eric row their boat (at a constant speed) 16 miles downstream for 2 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 8 hours. Find the rate of the current.
A. 2.5 mph
B. 3 mph
C. 5 mph
D. 4 mph
Answer: B
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Using Green's Theorem, calculate the area of the indicated region.The circle r(t) = (9 cos t)i + (9 sin t)j, 0 ? t ? 2 ?
A. 81? B. 9? C. 2? D. 18?
Find the limit if it exists.
(9x2 - 2x - 6)
A. 914 B. 874 C. 886 D. 926
Add or subtract. Simplify if possible.
- 
A. 
B. 
C. 
D. 
Solve.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If an object with a mass of 28 kilograms accelerates at a rate of 
per second per second by a force, find the rate of acceleration of an object with a mass of 
that is pulled by the same force.
A. 35 meters per second per second
B. 
meters per second per second
C. 36 meters per second per second
D. 42 meters per second per second