web2.0calc
 
+0  
 

math pls help y i no understand facorting quadratics help pls

0
534
3
avatar

The equation y = -16^2 + 26t + 105 describes the height (in feet) of a ball tossed up in the air at 26 feet per second from a height of 105 above the ground. In how many seconds will the ball hit the ground? express your answer as a decimal rounded to the nearest tenth.

 Dec 11, 2020

3+0 Answers

 #1
avatar
-1

When the ball hits the ground, the height, y, will be 0

0 = -16t2 +26t + 105        a = -16     b = 26     c = 105   in quadratic formula

\(t = {-b \pm \sqrt{b^2-4ac} \over 2a}\)        throw out any negative value for 't' that you find......

 Dec 11, 2020
 #2
avatar
0

but in how many seconds will ball hit ground tho

Guest Dec 11, 2020
 #3
avatar
0

THAT is what was explained.....   sub in the values of   a  b   c   into the quadrtaic formula to calculate 't' when the ball hits the ground....

    you are familiar with the Quadratic Formula ...yah?

Guest Dec 11, 2020

0 Online Users

Top Users

avatar+128475 CPhill moderator
avatar+118609 Melody moderator
avatar+33616 Alan moderator
avatar+14915 asinus moderator
avatar+9519 MaxWong
avatar+3144 admin administrator
avatar+2440 GingerAle
avatar+1791 tomtom
avatar+1484 bader
avatar+1101 parmen
avatar+1032 kittykat

Sticky Topics