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3 years ago

7

Please tell me the answer and how you got it

1 answer:

Darina [25.2K]3 years ago

7 0

Answer = 18.84ft

To find the circumference of the circle, use the equation:

Circumference = pi x diameter

(Personally, I remember it as ‘cherry, pi, delicious’ (circumference, pi, diameter))

The diameter is given, so substitute that in the equation.

Circumference = pi x 6

pi x 6 = 18.84ft

Hope this helps :)

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2 years ago

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tamaranim1 [39]

Answer:

Your(my) number is 40

Step-by-step explanation:

I. Given 80/something, + 13, * 5 = 75 when x is something

So [ $\frac{80}{x}$ + 13 ]5 = 75

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II. Prove by replace 40 in x

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2 years ago

Find the inverse: f(x)=x+5/3x-1<br><br> f^-1x=

babunello [35]

We have $f(x)=\dfrac{x+5}{3x-1}$ .

To find inverse function $f^{-1}(x)$ we substitute x with $f^{-1}(x)$ and vice-versa to get

$x=\dfrac{f^{-1}(x)+5}{3f^{-1}(x)-1}$

Now solve for $f^{-1}(x)$ . Note that I will use $j$ instead.

$x=\dfrac{j+5}{3j-1} \\x(3j-1)=j+5 \\3jx-x=j+5 \\3jx-x-j-5=0 \\3jx-j=x+5 \\j(3x-1)=x+5 \\j=\dfrac{x+5}{3x-1}$

So we find that $f(x)=f^{-1}$ .

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3 years ago

Read 2 more answers

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Step-by-step explanation:

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Step-by-step explanation:

8 divided by 2 = 4

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3 years ago