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4 years ago

Which of the following is not a prime number 263, 1057, 3163, or 157

1 answer:

3 0

This is why the internet was invented so lets use an online math calculator.
Prime means that the only factors are 1 and itself.

Woah look at what I found!
263 is prime
1057 isn't? oh wow. 7 * 151
3163 is prime
157 is prime

So it is 1057 oh wow

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If you know abc=def can you state bc=ef

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Step-by-step explanation:

If abc=def is given,

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3 years ago

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3 years ago

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A circle is centered at $O$ and has an area of $48 \pi.$ Let $Q$ and $R$ be points on the circle, and let $P$ be the circumcente

nikklg [1K]

Answer:

Area of Triangle QRP = 3 $\sqrt{3}$

Step-by-step explanation:

According to Question , We have a circle With Centre 'O' & Area 48 $\pi$ .

Area Of Circle = 48 $\pi$

$\pi$ $r^{2}$ = 48 $\pi$

r = $\sqrt{48}$

Now We Have Two Points Given On Circle Q & R , P Is Circumcentre Of Triangle QRO .

Thus A Circle Can Also Be Formed with Centre P . ( See attachment For Diagram )

Now The Diameter of Circle With Centre P = Radius Of Circle with Centre O

so Radius Of Circle With Centre P( $r_{2}$ ) = $\frac{\sqrt{48}}{2}$

Now We Have To Find Area Of Equilateral Triangle .

A = $\frac{\sqrt{3}}{4} r_{2} ^{2}$

A= $\frac{\sqrt{3} }{4} * \frac{\sqrt{48} }{2}*\frac{\sqrt{48} }{2}$

The Area Of PQR is = 3 $\sqrt{3}$

For Diagram , Please Find In Attachment

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3 years ago

Use this figure to calculate the size of ∠EOC.

KengaRu [80]

It would be better if you've attached the figure its angle I should calculate. But I'll help you with some advice. You can find application in the internet that will calculate any angle by different ways. Just search your question, it will be first link

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3 years ago