Please explain how I can use math to solve the problem.
Sarah drops a penny from a height of 1250 feet. I will be using h for height and t for time in seconds, this will be modeled in the function h = -16t^2 + 1250. How will it take for Sarah’s penny to reach the ground?
How I would do it is get this "Sarah" to drop the penny again so I can just count how long it takes. But I have to use "Math" to solve it. How do I use "Math" to solve it?
Explain, PLEASE NO DIRECT ANSWER I WANT TO LEARN

- MrNebula

- Stacey Warren - Expert brainly.com

Hey! We 've verified this expert answer for you, click below to unlock the details :)

- jamiebookeater

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

- geekfromthefutur

Hey how are you?

- MrNebula

Not good, I really need help

- geekfromthefutur

Ok, well im here to help ya. So you can get this nasty math problem out of the way sound good?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- MrNebula

Yes after I read what you said I nearly cried :D

- geekfromthefutur

Lol

- geekfromthefutur

Just to let you know im looking over your problem and getting all the facts.

- MrNebula

I know im letting you take your time if you dont understand what its asking let me know

- MrNebula

I need the formula to the answer explained

- geekfromthefutur

Nah i get it now.

- MrNebula

K

- geekfromthefutur

First, we are going to have to multiply 16 ^2

- MrNebula

With what?

- geekfromthefutur

Thats it we have to solve 16^2. You know how if noti will show you how.

- geekfromthefutur

its a step to solving the equation

- MrNebula

I know that the ^2 is the square root right?

- geekfromthefutur

Correct

- MrNebula

So do you 16 * 2 thats easy

- geekfromthefutur

K what did u get

- MrNebula

Easy 32

- geekfromthefutur

ok do it with a negative -16

- MrNebula

Um - 32

- geekfromthefutur

Lol correct

- MrNebula

Hehe

- geekfromthefutur

Ok so now we have to do this -32t + 1250 now solve that

- MrNebula

1218t right?

- MrNebula

Why do we have t all the sudden?

- geekfromthefutur

the t has been there lol
h = -16t^2 + 1250.

- geekfromthefutur

and you are correct

- MrNebula

I know that but why are we multiplying it with 1218t?

- MrNebula

1218*

- geekfromthefutur

Ok and i already asked my friend @Thesmarterone to help

- MrNebula

Oh I see because it was with the 16

- MrNebula

Ok

- geekfromthefutur

If he dont come ill help

- MrNebula

If he does will he replace you?

- geekfromthefutur

Actually I messed up lol xD it is 32 seconds it takes to fall to cut it short

- MrNebula

To cut it short?

- geekfromthefutur

well ik i messed up

- MrNebula

Ok im kinda lots with that, but restart then?

- geekfromthefutur

lemme c if i can get some1 in here if not we will work together again lol sorry this turned into a long problem

- MrNebula

Its ok man I got all day if we need to

- MrNebula

This problem may save my butt in school so I dont care how long it takes

- geekfromthefutur

@ganeshie8 @just_one_last_goodbye

- geekfromthefutur

Ok here:
http://www.wolframalpha.com/input/?i=Sarah+drops+a+penny+from+a+height+of+1250+feet.+I+will+be+using+h+for+height+and+t+for+time+in+seconds%2C+this+will+be+modeled+in+the+function+h+%3D+-16t%5E2+%2B+1250.+How+will+it+take+for+Sarah%E2%80%99s+penny+to+re

- geekfromthefutur

What school is this?

- MrNebula

Wow wolframalph can do that! dang...

- MrNebula

Oh connections

- geekfromthefutur

i do flvs and yea that should help

- MrNebula

Hi Captain America

- MrNebula

Well I can use the graph to show some extra data...

- geekfromthefutur

Hey last idk if you could help or not

- MrNebula

I still will need to show how I came up with the answer and I dont want it as a "direct answer"

- geekfromthefutur

Tru

- MrNebula

Still need step by step explination

- geekfromthefutur

Ok well lets see first you mutiply -16 x 2 and you get -32t

- MrNebula

Ya

- geekfromthefutur

So then, The total seconds it fallen was 32 seconds. Because when you mutiply 16*2 it will give u -32 and with the 1250 it was already part of the problem so the only thing needed to be done was mutiplication and solving 16*2

- MrNebula

Oh ok

- geekfromthefutur

Good?

- MrNebula

Ya so t is -32?

- MrNebula

Or just 32?

- geekfromthefutur

T IS 32 lol sry caps

- MrNebula

So 32 per feet?

- MrNebula

That is slow falling that cant be right

- geekfromthefutur

@satellite73 Is this correct

- MrNebula

Well I guess with the wind pushing the penny up making the fall slower

- MrNebula

if it is correct then all I have to do is times 32 by 1250 that will give me how much time it takes from top to bottom

- geekfromthefutur

THATS WHAT I FORGOT TO DO DA* IM DUM

- MrNebula

Wait you didn't think to times 32 by 1250?

- geekfromthefutur

No because it you mutiplied it would be to high of a nimber so we have to divide the time

- MrNebula

Ok... If you say so. Go on

- geekfromthefutur

So now how would u do it 32/1250 or 1250/32?

- MrNebula

32/1250 would be way to small of a number but why would we 1250/32

- geekfromthefutur

Exactly and what would we get and sorry the site got closed down

- MrNebula

I didn't notice anything and we would get 39.06

- geekfromthefutur

Correct

- geekfromthefutur

So thats what it would be

- MrNebula

Thats what t is?

- geekfromthefutur

Yes ik im right

- MrNebula

K so now we times that by 1250 to find the total time from top to bottom

- MrNebula

= 48828.125

- geekfromthefutur

OK

- geekfromthefutur

Now what do you think?

- MrNebula

I think that t = 39. and the total time from top to bottom is 48828

- geekfromthefutur

Awesome^-^

- MrNebula

Thanks I just need to put this down in steps and explain it step by step!

- MrNebula

THANK YOU

- MrNebula

Ill let you know what my teacher says about it so we can both be corrected if there is a issue

- MrNebula

But we should be good ;)

Looking for something else?

Not the answer you are looking for? Search for more explanations.