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3 years ago

12

a 5 miles race is approximately 8.05km . John is going to run a 5km race this Saturday. how many miles will he run ( round to th

e nearest tenth.

1 answer:

bonufazy [111]3 years ago

6 0

He will run about 3.1 miles

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Solve the equation to find where the treste ground levelEnter your answers from least to greatest and round to the nearest The m

DaniilM [7]

Answer:

The trestle meets ground level at 0.875 units and 9.125 units

Step-by-step explanation:

Poorly formatted question.

The given equation is:

$y = -x^2 + 10x - 8$

Required

The point where the trestle gets to the ground level

To do this, we set $y = 0$

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$-x^2 + 10x - 8 = 0$

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Where:

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So, we have:

$x= \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*8}}{2*1}$

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$x= \frac{10 \± 8.25}{2}$

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3 years ago