Cameron launches a toy plane from the roof of the school building, which is 84 feet high. The plane's height above the ground is modeled by the function .h=-16t^2+32t+84
d) Unfortunately, Cameron's plane took a nosedive and crash-landed on the ground. Always looking on the bright side, Cameron decided to figure out how long his plane was in the air before it crash-landed.
How long was Cameron plane in the air before it crash-landed? you MUST clearly explain all the steps you took to find the solution
Plz give a good step by step explanation

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

answer is 12345678900987654321234567890987654321

step-by-step explanation: