Solve the problem.The distance, s, in feet, traveled by a body falling freely from rest in t seconds is approximated by the function 
An experimenter on a ladder releases a marble from rest. The marble takes 5 seconds to fall to the ground. How high was the marble when it was released?
A. 6400 feet
B. 25 feet
C. 400 feet
D. 80 feet
Answer: C
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It is the rotation of a space station that provides Earth-level gravity. The number N of rotations per minute needed to provide Earth-level gravity depends on the radius r, in meters, of the spinning space station. The relationship is
?
.
A. Make a graph of the number of rotations per minute versus the radius. Include radii from 10 to 100 meters.B. What happens to the required number of rotations as the radius increases?C. What number of rotations per minute is required if the radius is 26.00 meters? Report your answer correct to 2 decimal places.
What will be an ideal response?
Rationalize the denominator and simplify. 
A. 
B. 
C. 
D. 
The two triangles below are similar. Find the missing lengths.
A. x = 4 B. x = 6 C. x = 3 D. x = 9
Determine if the vertex of the graph is a maximum point or a minimum point.y = -(x + 2)2 - 4
A. Maximum B. Minimum