**Help! h(t)=-16t^2 +128 t**An arrow is fired into the air with an initial velocity of 128 feet per second. The height in feet of the arrow t seconds after it was shot into the air is given by the function above. h(t)=-16t^2 +128 t After how many seconds does the arrow take to reach its maximum height?

a)4 seconds

b).25 seconds

c)8 seconds

d)3 seconds

In the previous problem, you determined the time it takes for the arrow to reach its maximum height. Use that information to find the maximum height of the arrow.

a)256 ft

b)896 ft

c)240 ft

d)31 ft

**Answer:**

It takes 4 seconds

**Step-by-step explanation:**

Need to find the Vertex of h(t)

to find maximum height.

Vertex at t = -b/(2a)

t = -(128) / (2*-16) = 4 seconds

Rate answer

If your question is not fully disclosed, then try using the search on the site and find other answers on the subject Mathematics.

Find another answersMathematics, published 11.05.2023

Mathematics, published 23.03.2023

Use the equation to identify the center and radius of the circle (X+3)^2+(y-7^2=11

Mathematics, published 27.05.2023