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3 years ago

The circumference of a circle is defined to be the

Mathematics

2 answers:

andrew-mc [135]3 years ago

8 0

Answer:

The distance around a circle.

Step-by-step explanation:

Lady bird [3.3K]3 years ago

5 0

Answer:

The circumference of a circle is it's perimeter

(ie the distance around it's edge)

It is found that the circumference of a circle is

always π ≈ 3.141593 times longer than its diameter,

regardless of the circles size.

This relationship is given by the equation

C = πD

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What is the sum of the first 6 terms of this geometric sequence? –4, –16, –64, –256, …

MatroZZZ [7]

$a_1=-4;\ a_2=-16;\ a_3=-64;\ a_4=-256;\ ...\\\\r=\dfrac{a_{n+1}}{a_n}\to r=\dfrac{a_2}{a_1}\to r=\dfrac{-16}{-4}=4$

The formula of the sum of a geometric sequence:

$S_n=a_1\cdot\dfrac{1-r^n}{1-r}$

We have:

$a_1=-4;\ n=6;\ r=4$

substitute:

$S_6=-4\cdot\dfrac{1-4^6}{1-4}=-4\cdot\dfrac{1-4096}{-3}=-4\cdot\dfrac{-4095}{-3}=-4\cdot1365=-5460$

Answer: C. -5460

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4 years ago

Which of the following describes the ways organisms are interconnected through their feeding patterns?

Makovka662 [10]

Answer:

organisms are interconnected through their feeding patterns:

they process the route flow transmit through the intercellar silicosis.

Step-by-step explanation:

5 0

3 years ago

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16 3/7 −4 3/4 <br> subtract this fraction correctly and i will mark you brainliest

Ivan

Answer:

the nswer is 11.6785714286

Step-by-step explanation:

7 0

3 years ago

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This table models a linear function. x −8 −4 4 8 y −3 0 6 9 Enter the coordinates of the y-intercept in the boxes.

adell [148]

Answer:

y-intercept is 3

Step-by-step explanation:

We are given table

x: -8 -4 4 8

y: -3 0 6 9

We can select any two points

$x_1=-8,y_1=-3$

$x_2=-4,y_2=0$

Firstly, we will find slope

$m=\frac{y_2-y_1}{x_2-x_1}$

now, we can plug values

$m=\frac{0+3}{-4+8}$

$m=\frac{3}{4}\quad$

now, we can use point slope form of line

$y-y_1=m(x-x_1)$

we can plug values

$y+3=\frac{3}{4}(x+8)$

now, we can solve for y

$y=\frac{3}{4}x+3$

For finding y-intercept , we can plug x=0

$y=\frac{3}{4}\times 0+3$

$y=0+3$

$y=3$

So,

y-intercept is 3

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3 years ago

Need help!!! Please

Nady [450]

Answer:

I NEED HELP ON THAT ALSO

Step-by-step explanation:

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3 years ago

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