please help!!!!:) medal and fan
The height of a ball thrown directly up with a velocity of 40 feet per second from a initial height of of 5 feet is given by the equation h(t)==16t^2+40t+5, where t is the time in seconds and h is the ball’s height, measured in feet. When will the ball hit the ground? Round your answer to the nearest tenth.
A. 1.4 seconds
B. 2.6 seconds
C. 3.1 seconds
D. 3.7 seconds

Question

please help!!!!:) medal and fan 
The height of a ball thrown directly up with a velocity of 40 feet per second from a initial height of of 5 feet is given by the equation h(t)==16t^2+40t+5,  where t is the time in seconds and h is the ball’s height, measured in feet. When will the ball hit the ground? Round your answer to the nearest tenth. 
A. 1.4 seconds
B. 2.6 seconds
C. 3.1 seconds
D. 3.7 seconds

adamk · Answer

Find the discriminant first.

anonymous · Answer

A. 1.4 BUT i  ACTUALLY GOT 1.3 LOL BUT I THINK THAT IS CORRECT. Srry capd, plus Im not good at that

anonymous · Answer

Im a horrible person......

anonymous · Answer

would you also mind helping me with the same question, just with a different equation?

anonymous · Answer

it has the same answers

anonymous · Answer

velocity of 10... height of 100
h(t) =16t^2+10t+100

anonymous · Answer

@TrinStudies

anonymous · Answer

I don't want you to fail....
So....don't rely so much on me answers..
Now this one is more confusing. o.o without choices to choose from I don't knwo if i'm doing it incorrrectly.. D: srry

anonymous · Answer

the choices are the same ones as above. 	
1.4 seconds
B.
2.8 seconds
C.
3.1 seconds
D.
3.7 seconds

anonymous · Answer

...Hmm let me work on this one

anonymous · Answer

its okay if you dont want to do it though! :)

anonymous · Answer

Im doing it :3

anonymous · Answer

thank you!:)

anonymous · Answer

.. Ok so I thought I had the answer but It is not quite a choice let me redo the equation.

anonymous · Answer

Wait one important question, and this question can answer your problem for me, what is we looking for exactly? @briannalicxox

anonymous · Answer

Because I might be doing another equation instead the one this equation is...

anonymous · Answer

when will the ball hit the ground.. i know it has something to do with the discriminant but im not sure how to do it

anonymous · Answer

Ok

anonymous · Answer

Ok.... I hope I did this correctly and plz don't be mad if you failed because of me (I'm only in 6th grade but is advanced D: and only wishes and sometimes knows the answer! D:) 

But I got 2.9 but an answer is 2.8 so Im guessing 2.8 is correct.... Hopefully i'm correct :D

anonymous · Answer

@briannalicxox

anonymous · Answer

okay thank youu!

anonymous · Answer

B, and that's weird that I was off 1 on both answers :3