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sineoko [7]
3 years ago
11

What's the x-intercept for number 26?

Mathematics
1 answer:
Lunna [17]3 years ago
6 0
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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