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Casie jumped off of a cliff into the ocean while on vacation. Her height as a function of time is modeled by the equation h = −16t2 +16t + 140, where t is the time in seconds and h is the height in feet.
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Casie jumped off of a cliff into the ocean while on vacation. Her height as a function of time is modeled by the equation h = −16t2 +16t + 140, where t is the time in seconds and h is the height in feet. How long does it take Casie to hit the water?

User Blue Ghhgdtt
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It takes Casie 3.5 seconds to hit the water.
User Anand Nimje
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