A football is kicked into the air with an initial upward velocity of 82 feet per second. It's height, h (in feet), is recorded at various seconds, t, in the table below. (look at picture)

1. write the equation for the curve best fit?
2. estimate the height of the football after 5 seconds.
3. estimate when will the football hit the ground.

answer choices:
h= -16t^2-82t
h=16t^2+82t
h= -16t^2+82t
h=16t^2-82t
5 feet
5 seconds
10 seconds
10 feet
810 feet
810 seconds ​

What is the value of x in the diagram below?

Which of the following could be the ratio of the length of the longer leg 30-60-90 triangle to the length of its hypotenuse? check all that apply. a. 313 6 b. 3: 215 c. 18: 13 d. 1: 13 e. 13: 2 of. 3: 15

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.