Solve the problem.A person standing close to the edge on top of a 272-foot building throws a baseball vertically upward. The quadratic function 
models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 336 seconds
B. 1.5 seconds
C. 6.6 seconds
D. 2 seconds
Answer: D
Mathematics
You might also like to view...
Solve the problem.Find the centroid of the region cut from the first quadrant by the line 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 1, 
= 
D. 
= 
, 
= 1
Mathematics
Solve the equation.5x(3x + 15) = 0
A. 0, 5
B. 0, - 
C. 0, -5 , 5
D. 0, -5
Mathematics
Find the equation of the parabola described.Focus at (0, 18); directrix the line y = -18
A. x2 = -72y B. x2 = 72y C. y2 = 72x D. y2 = 18x
Mathematics
Use the vertex and intercepts to sketch the graph of the quadratic function.f(x) = 3x2 + 24x + 47
A. 
B. 
C. 
D. 
Mathematics