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Mathematics 8 Online
OpenStudy (anonymous):

An archer releases an arrow from a shoulder height of 1.39 m. When the arrow hits the target 18 m away, it hits point A. When the target is removed, the arrow lands 45 m away. Find the maximum height of the arrow along its parabolic path.

OpenStudy (anonymous):

bullseye is 8cm wide, other points are 4cm wide

OpenStudy (anonymous):

@AravindG @hba @hartnn help

OpenStudy (hba):

OpenStudy (anonymous):

lol can u help explain??

OpenStudy (hba):

The pdf attached above is the solution.

OpenStudy (hba):

Do you want me to go step by step?

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

i want to know how to do it lol

OpenStudy (hba):

the parabola is defined by the equation: y = f(x) = ax² + bx + c ...where a, b, and c are constant coefficients to be determined. You are given three points: f(0) = 1.39 f(18) = h ... (height of point A) ... I suspect there's a figure you're not showing us f(45) = 0

OpenStudy (hba):

You need that height h to solve the problem.

OpenStudy (anonymous):

OpenStudy (hba):

It will give you 3 equations and 3 unknowns.

OpenStudy (anonymous):

its Activity 2

OpenStudy (anonymous):

@hba ???

OpenStudy (anonymous):

@MathLegend help

OpenStudy (anonymous):

@ehuman

OpenStudy (anonymous):

which one are you doing, height of arrow?

OpenStudy (anonymous):

Yeah

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