anonymous
  • anonymous
A ball is thrown from an initial height of 1 meter with an initial upward velocity of 25/ms.The ball's height h (in meters) after t seconds is given by the following. h=1+25t-5t^2 Find all values of t for which the ball's height is 6 meters. Round your answer(s) to the nearest hundredth.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Koikkara
  • Koikkara
@kamelish Can you draw the picture and write down the given data, like \(h=?\) etc ...
anonymous
  • anonymous
it wont let me @Koikkara
phi
  • phi
\[ h=1+25t-52t^2 \] ball's height is 6 . That means h is 6. \[ 6 = 1+25t-52t^2 \] put that in standard form \[ -52t^2 +25t -5=0 \] It looks like we should use the quadratic formula to solve for t do you know the quadratic formula?

Looking for something else?

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

More answers

anonymous
  • anonymous
its 5t^2 i made a mistake @phi
phi
  • phi
that's good, a much nicer number \[ -5t^2 +25t+1=6 \\ -5t^2 + 25t -5= 0 \] divide both sides by -5 (to simplify the equation a little bit) \[ t^2 -5t+1=0\] but you still need to use the quadratic formula. Do you know it ?
anonymous
  • anonymous
i know it a little bit @phi
phi
  • phi
Do you have time to see this https://www.khanacademy.org/math/algebra2/polynomial-and-rational/quad_formula_tutorial/v/using-the-quadratic-formula It is pretty good.
anonymous
  • anonymous
t=4.79 or t=0.20? @phi
phi
  • phi
if you have multiple choice, you can test each answer in the original formula \[ 1+25t-5t^2 = 6 \] and see if you get 6 for the left-hand side
anonymous
  • anonymous
thnaks =) @phi

Looking for something else?

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