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2 years ago

Find the circumference of the circle.

Mathematics

2 answers:

never [62]2 years ago

8 0

$HOLLA !$

As we know the CIRCUMFERENCE:- 2πr

Here r belongs to radius which is equals to = diameter/ 2

Here in the given picture the diameter is 14 so the radius will be 7 .

Now CIRCUMFERENCE = 2× π × 7
= 14π

But we habe to findonly the number which is suitable for the given box so there will be 14 in the box

So 14 is the correct answer .

HOPE IT HELPED YOU.

OLga [1]2 years ago

3 0

Circumference (C) = 2 π·r ; where r is the radius = diameter(d)/2

C = 2 π·(14/2)

=2 π·(7)

= 14π

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Option C:

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Given expression:

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$$\frac{5 !}{2 !(5-2) !}(2 x)^{3} y^{2}= 80 x^{3} y^{2}$

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$$\frac{5 !}{4 !(5-4) !}(2 x)^{1} y^{4}= 10 x y^{4}$

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Substitute these into the above expansion.

$(2x+y)^5=32 x^{5}+80 x^{4} y+80 x^{3} y^{2}+40 x^{2} y^{3}+10 x y^{4}+y^{5}$

The coefficient of $x^{2} y^{3}$ is 40.

Option C is the correct answer.

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