Question

how do i do this? :/

Answer 1

solve it

Answer 2

that is applying your quadratic knowledge into real life :)

Answer 3

make your life simpler and divide by 4 before you start

Answer 4

\[-16t^2+44t+16=0\]
\[4t^2-11t-4=0\] work with that one

Answer 5

too annoying

Answer 6

and make the leading coefficient positive
it just makes the calculation easier, the answer will be the same

Answer 7

you should get
\[\frac{11+\sqrt{185}}{8}\] i think, then a calculator

Answer 8

which, now that i look, is in fact what you got, just with more ugly minus signs

Answer 9

ari, read this first :)
http://www.mathsisfun.com/algebra/quadratic-equation-real-world.html

Answer 10

yeah it is a little more than 3

Answer 11

3.075 sec, but you get the idea

Answer 12

ya :)
there are different ways to solve a quadratic problem. Using the quadratic formula is just one of them.