thebookishpanda thebookishpanda

30-01-2017
Mathematics

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What's the x-intercept for number 26?

Whats the xintercept for number 26 class=

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floridabob floridabob

02-02-2017

it gives function: h = -16t^2 + 40
water is when height is 0 so solve for 0= -16t^2 + 40
subtract 40 from both sides: -40 = -16t^2
divide by -16: -40/-16 = t^2
simplify: 5/2 = t^2
square root both sides: 1.58 = t

the orange hits the river in 1.58 seconds.

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