Convert the rectangular coordinates of the point to polar coordinates (r, ?) with r > 0 and 0 ? ? < 2?.(6, -6
)
A. 
B. 
C. 
D. 
Answer: A
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If a rock is thrown upward on the planet Mars with a velocity of , its height in meters t seconds later is given by 
Find the average velocity over the time interval [2, 3]. a. –0.6 m/s b. 4.4 m/s c. 2.4 m/s d. 3.4 m/s e. 1.4 m/s
Subtract.-23 - (-23)
A. -46 B. 0 C. -23 D. 23
An open box is to be made from a square piece of cardboard, 21 inches on a side, by cutting equal squares with sides of length x from the corners and turning up the sides (see figure below). Determine the function, V, in terms of x, that represents the volume of the box.
a. 
b. 
c. 
d. 
e. 
Solve the problem.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane.
A. 605 mph B. 550 mph C. 435 mph D. 525 mph