A scientist dropped an object from height of 320 feet. The height of the object is modeled by the equation h=320 - 16t^2 . After how much time will the object hit the ground? v/20 seconds

10 seconds

40 seconds

20 seconds

√20

Step-by-step explanation:

hit the ground means h = 0

0 = 320 - 16t²

16t² = 320

t² = 320/16 = 20

t = √20

idk

step-by-step explanation:

your victory is right around the corner. never give up.

- niki minaj

8 apples are left.

step-by-step explanation:

10-2=8

10 apples

take 2

now u have 8