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Isaac and Robin are standing at approximately the same location. Isaac throws an

ID: 1283135 • Letter: I

Question

Isaac and Robin are standing at approximately the same location. Isaac throws an apple in the air. Its path can be modeled with the quadratic function y = ?1/15x^2 + 3x + 2, where x represents the apples horizontal distance in feet and y represents the apple?s vertical distance in feet. After the apple travels more than 2 feet (horizontal distance), Robin shoots an arrow in the air, piercing the apple. For the first 40 feet of its trajectory, its path can be modeled with the linear function y = 3/8x + 6, with x representing horizontal distance and y representing vertical distance. How many feet does the arrow travel horizontally before it hits the apple? (Round your answer to the nearest tenth of a foot.) __________________

Explanation / Answer

equ of apple

y=-1/15x^2+3x+2

eqn of arrow

y=3/8x+6

when arrow hit the apple they same co.ordinate

3/8x+6=-1/15x^2+3x+2

1/15x^2-21/8x+4=0

x1=1.59 less than and x2=37.79ft

x=37.79ft is answer

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