An air traffic controler is tracking two planes. To start, Plane A was at an altitude of 990 meters, and Plane B was at an altitude of 1476 meters. Plane A ls losing altitude at 18 meters per second, and Plane B is losing altitude at 27 meters per second.
Let x be the number of seconds that have passed.
(a) For each plane, write an expression for the altitude of the plane
after x seconds.
Altitude of Plane A (In meters) =
Altitude of Plane B (in meters) =
(B) Write an equation to show when the two planes would be at the same altitude
there is no grid
step-by-step explanation:
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!
It’s 5 points actually
Hello i think it’s 20