anonymous
  • anonymous
A Daredevil Jumps Off A Tall Building. He Falls Freely For Several Seconds Before Releasing His Parachute . His Height (h) In Meters , T Seconds After Jumping Can Be Modeled By : h=-4.9t^2+t+360 before he releases his parachute and h=-4t+142 After He Releases His Parachute . How Long After Jumping Did He Release His Parachute ? HELPP ME PLEASE !!!!
Mathematics
chestercat
  • chestercat
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phi
  • phi
both equations are true at the time he pulls his chute. set them equal to each other. (i.e. both give the height "h" where he pulls his chute)
anonymous
  • anonymous
CAN U DRAW AND SHOW ME IM VERY CONFUSED
phi
  • phi
-4.9t^2+t+360 = -4t+142

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anonymous
  • anonymous
OK , And The Next Step What Do I Do ?

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