Give all possible rational zeros for the polynomial.f(x) = -2x4 + 3x3 + 2x2 + 18
A. ±1, ± 
, ±2, ±3, ±6, ±9, ±18
B. ±1, ±2, ± 
, ± 
, ± 
, ± 
, ± 
C. ±1, ± 
, ±2, ±3, ± 
, ±6, ±9, ± 
, ±18
D. ±1, ±2, ±3, ±6, ±9, ±18
Answer: C
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Solve the problem.Find the centroid of the infinite region in the first quadrant bounded by the coordinate axes and the curve 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
A spherical balloon is being inflated. Find the rate of increase of the surface area 
with respect to the radius r when r = 1 ft.
What will be an ideal response?
The speed limit in Mississippi on a state highway is 75 mph. At this speed, how far could a car travel in 
hours?________ miles
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A rock falls from a tower that is 320 feet high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground 
Round to the nearest tenth, if necessary.
A. 17.9 sec B. 6400 sec C. 17.4 sec D. 4.5 sec