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3 years ago

The equation of a circle is given. Find the circumference of a circle. Write the circumference in terms of pi.

Mathematics

1 answer:

sattari [20]3 years ago

3 0

C=2πr and x^2+y^2=r^2
r=4 because of the equation (16)^1/2 is 4
C=8π

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4 years ago

What is the value of x ???

k0ka [10]

Answer:

D. $2\sqrt {133}$

Step-by-step explanation:

${x}^{2} = {18}^{2} + ( {12}^{2} + {8}^{2} ) \\ \\ {x}^{2} = 324 + (144 + 64) \\ \\ {x}^{2} = 324 + 204 \\ \\ {x}^{2} = 528 \\ \\ x = \sqrt{532} \\ \\ x = \sqrt{4\times 133} \\ \\ x = 2\sqrt {133}$

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3 years ago

How many terms are in (3x^2-3)(3x^2+3)

Marta_Voda [28]

The number of terms in the expression given is; 2.

<h3>How many term are in the expression given?</h3>

It follows from the task content that the expression given is; (3x^2-3)(3x^2+3).

It therefore follows the converse of law regarding difference of two squares that the expression given can be rewritten as;

= 9x⁴ -9

Read more on difference of two squares;

brainly.com/question/3189867

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2 years ago

PLEASE HELP ME I WILL DO ANYTHING!!

il63 [147K]

Answer:

i’m pretty sure it’s because they make 180°

Step-by-step explanation:

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3 years ago

Geometry please help asap!

m_a_m_a [10]

Step-by-step explanation:

AB = 3

by similaritiy criterion

CE/ CB= ED/AB

4/6= 2/AB

AB = 3

plz mark my answer as brainlist plzzzz also vote me ..if you find it useful.

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3 years ago