Quadratic Equations

[Byanka96]

HELP! I’m stuck on this question!
An arrow is shot vertically upward from a platform 25ft high at a rate of 158 fat/sec. When will the arrow hit the ground? Use the formula h=-16t^2+v₀*t+h₀. (Round your answer to the nearest tenth.)

 

[Deleted member 4993]

HELP! I’m stuck on this question!
An arrow is shot vertically upward from a platform 25ft high at a rate of 158 fat/sec. When will the arrow hit the ground? Use the formula h=-16t^2+^v0^t+^h0. (Round your answer to the nearest tenth.)

This is a quadratic equation. What are the roots of this equation?

Please show us what you have tried and exactly where you are stuck.

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[Dr.Peterson]

HELP! I’m stuck on this question!
An arrow is shot vertically upward from a platform 25ft high at a rate of 158 fat/sec. When will the arrow hit the ground? Use the formula h=-16t^2+v₀t+h₀. (Round your answer to the nearest tenth.)

I corrected the equation a little. What are you using "^" to mean? We use it to indicate that what follows is an exponent.

They should have stated what h means: the height of the arrow above ground at time t seconds. It will hit the ground when h = 0.

What are v₀ and h₀, from the given information?

Plug in numbers and solve the equation.