The height of a pop fly ball over the time after the ball is hit is modeled by the function, h(t) = -16t2 + 81t + 5, where h(t) is the ball’s height in feet above the ground and t is the time in seconds after the ball is hit. How many feet high was the ball when it was hit?

y=sec x is the correct answer

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the eight graders whould be the answer

step-by-step explanation: could you give me 5 stars

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

i think da answer is

d.square root of 3