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1 year ago

Help meeeeeeeeeeeeeee pleaseeeeeee

Mathematics

1 answer:

qwelly [4]1 year ago

6 0

Answer: 10.8 seconds

Step-by-step explanation:

$-16t^2 +170t+40=10\\\\16t^2 -170t-30=0\\ \\ t=\frac{-(-170) \pm \sqrt{(-170)^2 -4(16)(-30)}}{2(16)}\\\\t \approx 10.8 \text{ } (t > 0)$

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Answer:

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Step-by-step explanation:

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distribuir parênteses

$=2x^2\left(-2x^2\right)+2x^2x+2x^2\left(-6\right)+4x\left(-2x^2\right)+4xx+4x\left(-6\right)$

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