Question

HELPPPP.

Answer 1

Answer:

500-10x=250

x=how much the bird descended in a second

the bird will land on the ground in another 10 seconds.

Step-by-step explanation:

the bird will land on the ground in 10 seconds since it descended 250 ft in 10 seconds so that is 25 ft per second. then do 250/25 and you get 10. that is how you know the bird will land on the ground in 10 seconds.

Answer 2

Answer:

a) $h(t)=500-25t$

b) $t=20$

Step-by-step explanation:

a)

Let $h$ = height above ground

Let $t$ = time

Because the bird descended down to 250 feet in 10 seconds with a steady rate, that means it descends 25 feet per second.

∴   $h(t) = 500-25t$

b)

To find the time it takes until the bird reaches the ground, $h$ must equal $0$:

$0=500-25t$

$25t=500$

$t=20$

∴ It takes 20 seconds for the bird to reach the ground.