A rocket is fired into the air and eventually plummets back to the ground. Its path is modeled by the equation h(t) = -16+2 +422t +88. How many seconds will it take the rocket to reach its maximum height?
13. What is the maximum
height it will reach?
14. How high will it be after 6.96 seconds?
15. At what two times will it be 1900 feet above the ground?
16. How many seconds will it be in the air?

step-by-step explanation:

bull

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

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step-by-step explanation: