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3 years ago

What formula is used to find the circumference of a circle? isn't it C = 2πr ?

Mathematics

2 answers:

cestrela7 [59]3 years ago

8 0

Yes it is area is pie r^2

Vinil7 [7]3 years ago

4 0

Yes. You are right C=2 \pi r

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Answer:

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Step-by-step explanation:

I found 4 percent of 9.50 and added it, then found 10 percent and added it.

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3 years ago

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Monica [59]

Answer:

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Step-by-step explanation:

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Answer:

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3 years ago

Any suggestions or answers

Sati [7]

Answer:

$x=81\degree$

$y=99\degree$

$z=129\degree$

Step-by-step explanation:

The sum of the interior angles of a triangle is 180 degrees.

$\implies 51\degree+48\degree+x=180\degree$

$\implies 99\degree+x=180\degree$

$\implies x=180\degree-99\degree$

$\implies x=81\degree$

Use the exterior angles theorem to find y.

The exterior angle y is the sum of the two remote interior angles:

$y=51\degree+48\degree=99\degree$

The sum of angles on a straight line is 180 degrees.

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4 years ago

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LuckyWell [14K]

Answer:

Step-by-step explanation:

(-7x^2 - 3) + (4x - 6)

-3 - 6 = -9

-7x^2 + 4x - 9

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3 years ago

Read 2 more answers