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elena-s [515]
3 years ago
15

The expression for the number of diagonals that we can make from one vertex of a n sided polygon is​

Mathematics
1 answer:
Damm [24]3 years ago
7 0

Answer:

\frac{n(n-3)}{2}

Step-by-step explanation:

Polygon Diagonals are a pattern that follows a specific rule which can be used through a specific formula. Remember that Math focuses on patterns to create equations that help to study them, and this case is not an exception.

The equation for polygon diagonals is

\frac{n(n-3)}{2}

Where n refers to the number of sides of the polygon.

You see, a diagonal is defined as the union between two non-consecutive vertices. For a convex n-sided polygon, there are going to be n vertices, and we can draw n-3 from each vertex, then we multiply this by n, because that's the total number of sides.

In the end, we divide by 2, because with the method described, we will have double number of diagonals.

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Please answer the circled questions below!
Anton [14]

Answer:

Step-by-step explanation:

1. The y-values in the table are constant, so the slope is 0. It is a horizontal line.

There is no x-intercept.

The y-intercept is (0, 1).

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For lines in standard form, the intercepts can be found easily. The x-intercept is the value of x when y=0:

  ax +0 = c

  x = c/a . . . . x-intercept

Similarly, the y-intercept is the value of y when x=0:

  0 +by = c

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3. x-intercept = (-20/2, 0) = (-10, 0)

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Plot these points and draw a line through them.

8 0
3 years ago
478 cm x 427 cm = ? meters
vekshin1
478×427= 204,106cm
204,106cm - 2041.06m
204,106cm - 20.411m2
5 0
3 years ago
5 Divided by 35.15?<br> Sorry if I spam a lot of questions it’s my final exam for school.
Orlov [11]
ANSWER: 0.142247510668563
5 0
3 years ago
Read 2 more answers
I need help doing thsi
Naily [24]
True! Because T is the defining letter of the line, so it would be true!

Hope this helps!! :)
7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7Bx%20-%201%7D%20" id="TexFormula1" title=" \sqrt[3]{x - 1} " alt=" \sqrt[3]
shusha [124]
So the -1 is under the check mark too?

7 0
3 years ago
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