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4 years ago

What is 8.61 to the nearest tenth?

Mathematics

2 answers:

poizon [28]4 years ago

7 0

8.61 to the nearest tenth is 8.6

Anvisha [2.4K]4 years ago

3 0

8.61 would be 8.7 because you would use the 8 to round and if the number is larger then 5 then you raise the score if its lower then you lower the score

"5 or more raise the score 4 or less let it rest"

a good way to remember that

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Please solve i will give brainiest 100 point question ****** do the whole page please need to pass or i will fail its my final t

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Answer:

1. Find the difference between the areas.

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You can solve this question just by looking at the graph.

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$f(d)=h=-2d^2+7d+4$

To find the height of the bleachers, we should consider the moment before the shoot, when the distance is equal to 0.

$f(0)=h=-2(0)^2+7(0)+4$

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$f(1)=h=-2(1)^2+7(1)+4$

$f(1)=h=-2+7+4$

$h=9$

b) The ball travels 4 meters.

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$0=-2d^2+7d+4$

Using the quadratic formula:

$d=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$d=\frac{-7 \pm \sqrt{7^2-4\left(-2\right)4}}{2\left(-2\right)}$

$d=\frac{-7\pm\sqrt{81}}{-4}$

$d=\frac{-7\pm9}{-4}$

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From the information given, we have

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<h3>Formula used: </h3>

$#V=pi r^2 h#$

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