Amodel rocket is launched from the ground with an initial velocity of 352 ft/sec.
how long will it take the rocket to reach its maximum height? show all work in the space provided.
assume the model rocket’s parachute failed to deploy and the rocket fell back to the ground. how long would it take the rocket to return to earth from the time it was launched? show all work in the space provided.
! ?

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )

none of these

step-by-step explanation:

23 + 34 add up to 57 so just inform the teacher of this really stupid mistake