The rectangular coordinates of a point are given. Find polar coordinates of the point. Express ? in radians.(-4
, -4
)
A. (4
, 135°)
B. (8, 135°)
C. (8, 225°)
D. (4
, 225°)
Answer: C
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Write the given decimal as an infinite series, then find the sum of the series, and finally, use the result to write the decimal as a ratio of two integers.0.611611 . . .
A. 
B. 
C. 
D. 
Find the Jacobian 
or 
(as appropriate) using the given equations.x = 6u cos 8v, y = 6u sin 8v
A. 384v B. 384u C. 288u D. 288v
Solve.While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 9 feet per second per second when the radius of the turn is 40 feet, find the acceleration the passengers feel when the radius of the turn is 120 feet.
A. 5 feet per second per second B. 4 feet per second per second C. 3 feet per second per second D. 6 feet per second per second
Provide an appropriate response.The height of an object after t seconds is given by the equation h = -16t2 + 9t + 5. When 
, solving for t means finding the time when the object hits the ground. A student uses the quadratic formula and finds 2 solutions. One is negative and the other positive. Which solution makes sense? Which does not? Why?
What will be an ideal response?