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Mathematics, 20.05.2021 16:10 amorenextdoor

A daredevil jumps off a tall building. He falls freely for several seconds before releasing his parachute. His height ( ) in meters, seconds after jumping can beโ„Žํ‘ก modeled by:before he releases his parachute andโ„Ž =โˆ’ 4.9ํ‘ก 2 + ํ‘ก + 360 after he releases his parachute. How long after jumping did heโ„Ž =โˆ’ 4ํ‘ก + 142 release his parachute?

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