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[HELP!] Your friend competes in a high jump competition at a track meet. The function h= -16t + 18t models the height h (in feet) of your friend after t seconds. After how many seconds is your friend at
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[HELP!] Your friend competes in a high jump competition at a track meet. The function h= -16t + 18t models the height h (in feet) of your friend after t seconds. After how many seconds is your friend at a height of 4? How many seconds will it take your friend to land on the ground? (Show work please! ^^)

User Rgdesign
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that would be 212 and then you add the 4 so they would land on.the ground 216 16+16=212+4=216 hope i helped
User Barsham
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