3 years ago

What rule relates the number of circles in the pattern, c, to the figure number, f ?

Mathematics

1 answer:

Lorico [155]3 years ago

8 0

Answer:

c = f + 2

Step-by-step explanation:

Each time there is a new figure ( f ), two circles ( c ) are added.

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He sum of the interior angles, s, in an n-sided polygon can be determined using the formula s = 180(n 2), where n is the number

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Answer:

Step-by-step explanation:

Equation

Sum = s = 180*(n - 2)

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cylinder with height 9 inches and radius is filled with water, it can fill a certain pitcher. How many of these pitchers can a c

larisa [96]

Answer:

Step-by-step explanation:

The 1st cylinder used to fill the pitcher has:

height:

h = 9 in

radius:

r = r

The volume of a cylinder is given by:

$V=\pi r^2 h$

Therefore, the volume of the 1st cylinder is

$V=\pi r^2 9=9\pi r^2$

We are told that the water inside this cylinder can fill a certain pitcher, so this is also the volume of the pitcher.

Then, we have a second cylinder, which has height

h = 9 in

and radius

r' = 2r

So the volume of this cylinder is

$V'=\pi r'^2 h = \pi (2r)^2 9 =9\pi (4r^2)=36\pi r^2$

This means that the number of pitchers that can be filled by this 2nd cylinder is

$n=\frac{V'}{V}=\frac{36\pi r^2}{9\pi r^2}=4$

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