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3 years ago

If I told you the circumference of a circle was 9 , what would the diameter be ?

Mathematics

1 answer:

Dovator [93]3 years ago

6 0

Circumference=pi*Diameter 9/pi=2.864 or 2.9 to one dp

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Step-by-step explanation:

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lions [1.4K]

Answer:

sin( -∅ )

- 1 / csc ( ∅ )

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Step-by-step explanation:

Since sin(x) is and odd function (a function where f(-a) = f(a) ).

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3 years ago

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Dahasolnce [82]

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3 years ago

Read 2 more answers

Y = 2x <br> x + y = −6<br> the answer should be like this (x,y) or ( , )

melisa1 [442]

Answer:

(-2, -4)

Step-by-step explanation:

Given:

The system of equations to solve is given as:

$y=2x\\\\x+y=-6$

In order to solve this system of linear equations, we use substitution method.

In substitution method, we substitute the value of any one variable in the other equation.

So, we substitute the value of 'y' from first equation in the second equation.

This gives,

$x+2x=-6\\\\3x=-6$

Dividing both sides by 3, we get:

$\frac{3x}{3}=\frac{-6}{3}\\\\x=-2$

Now, $y=2x=2\times -2=-4$

Therefore, the solution is (-2, -4)

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3 years ago