A Daredevil Jumps Off A Tall Building. He Falls Freely For Several Seconds Before Releasing His Parachute . His Height (h) In Meters , T Seconds After Jumping Can Be Modeled By : h=-4.9t^2+t+360 before he releases his parachute and h=-4t+142 After He Releases His Parachute . How Long After Jumping Did He Release His Parachute ? HELPP ME PLEASE !!!!
@imqwerty

Question

A Daredevil  Jumps Off A Tall Building. He Falls Freely For Several Seconds Before Releasing His Parachute . His Height (h) In Meters , T Seconds After Jumping Can Be Modeled By : h=-4.9t^2+t+360 before he releases his parachute and h=-4t+142 After He Releases His Parachute . How Long After Jumping Did He Release His Parachute ? HELPP ME PLEASE !!!!
@imqwerty

anonymous · Answer

The height functions will be equal when he releases the parachute
$$-4.9t^2+t+360=-4t+142$$
Make one side equal to 0 and use the quadratic equation to solve

plasmataco · Answer

He falls for218 meter

anonymous · Answer

How ?

plasmataco · Answer

Are u asking me?

anonymous · Answer

im asking whoever can help me solve thus problem

anonymous · Answer

Do you know the quadratic equation?

anonymous · Answer

No But I Know How To Do The Formula

anonymous · Answer

sry, I meant formula

anonymous · Answer

The equation is in my first post

anonymous · Answer

Oh Yea i Had That

anonymous · Answer

what do you have?

anonymous · Answer

-4.9t^2 + t +360 = 4t +142

anonymous · Answer

Thats All I Have I Dont Know The Next Step.

anonymous · Answer

It should be -4t + 142 on the right side.
the next step is to make one side be 0 by adding or subtracting everything on that side of the equation. You have -4t on the right side. How would you move it from the right to the left?

anonymous · Answer

Can You Please Explain

anonymous · Answer

By Drawing So I Can Get A Visual Picture .

anonymous · Answer

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