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3 years ago

A circle has an area of 50 square meters what is the diameter

Mathematics

2 answers:

topjm [15]3 years ago

7 0

Area = πr²
50 = πr²
r = √50/π

so diameter = 2√50/π
which is = 7.98m to 3sf

Serjik [45]3 years ago

5 0

<span>d+7.98 meters

This the answer

</span>

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Answer:

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A is the correct option.

Step-by-step explanation:

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From this formula it is clear that in order to find the length of the side of the triangle, we must have two angles and a side.

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3 years ago

I will mark you brainiest if you can answer this

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Step-by-step explanation:

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Answer:

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↑ we'll substitute this later (4th step onwards)

Differentiate the second time:

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2 years ago

When a number is decreased by 45%, the result is 9. What is the original number to the nearest tenth?

Paul [167]

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To decrease a number by 45% of its value, you subtract the 45%. To get 45%, you multiply the number by 0.45.

So, if x is the original number, then the equation for this word problem would be x - 0.45x = 9.

To solve, we first subtract 0.45x from x, which is 0.55x. This means that 0.55x is equal to 9. To simplify, we can divide both sides by 0.55. 9/0.55 is 16.36363636..., etc. The nearest tenth would be 0.4, so your answer is 16.4

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