Solve the problem.A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be 30 meters from the ground. Round your answer to the nearest tenth of a second.
A. 7.9 sec
B. 8.7 sec
C. 8.0 sec
D. 8.6 sec
Answer: A
Mathematics
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Graph the piecewise-defined function 
if 
, and 
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.
?
What will be an ideal response?
Mathematics
Find the most general antiderivative.
dy
A. 
y3/2 + 
+ C
B. 
- 
+C
C. 
y3/2 + 12
+ C
D. 
y3/2 - 12
+ C
Mathematics
Graph the linear inequality.y < -5x + 1
A. 
B. 
C. 
D. 
Mathematics
Evaluate the determinant.
A. -90 B. 90 C. -30 D. 30
Mathematics