Eyjafjallajökull is a volcano in Iceland. Ina research reuption a projectile is ejected with an initial velcony of 304 feet per second. The height H, in feet is given the equation H=16t^2 + 304t

t = 9.5 seconds

Step-by-step explanation:

Given that,

The initial velocity of the projectile is 304 ft/s

The height of the projectile is given by :

For maximum height,

Put h' = 0

or

So, the time taken to reach the maximum height is 9.5 seconds.

72 is the answer to this problem

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8