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zepelin [54]
3 years ago
7

Determine the number of diagonal of a dodecagon?

Mathematics
1 answer:
Katen [24]3 years ago
5 0
Use this pattern to predict the number of diagonals in a dodecagon (12-sided polygon). First create a triangle. Since you are looking for diagonals you must go from vertex to vertex, but they cannot be adjacent to each other. Therefore a triangle has no diagonals.
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Can someone please explain functions and how find the y intercept when in this form
Harrizon [31]

Slope-intercept form:  y = mx + b

[m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis]

Since you know:

m = -2         Substitute/plug it into the equation

y = mx + b

y = -2x + b     To find b, plug in the point (7, -4) into the equation

-4 = -2(7) + b

-4 = -14 + b     Add 14 on both sides to get "b" by itself

-4 + 14 = -14 + 14 + b

10 = b       Now that you found b or the y-intercept, plug it in

y = -2x + 10

So to find the y-intercept, just plug in the point you were given into the equation once you had substituted in the slope. The slope tells you how many/the number of units from each point.

Slope can also be seen as:

m=\frac{rise}{run}

"rise" is the number of units you go up(+ number) or down(- number) from each point. (y-axis)

"run" is the number of units you go to the right from each point (x-axis)

For example, if you were to graph this line,

you could first plot a point at the y-intercept (0, 10). To plot the next point, you use the slope -2 or -2/1. So from (0, 10) you would go down 2 units and to the right 1 unit, therefore the next point you would plot would be (1, 8)

5 0
3 years ago
When a button is pressed, a computer program outputs a random odd number greater than 1 and less than 9.  You press the button 4
g100num [7]

Answer:

Well if it is 1 to 9 and you press it 4 times you will have 9 possible outcomes

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Someone help it’s due in some time
Sati [7]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Kayden is the youngest of four siblings whose ages are consecutive integers. if the sum of their ages is 90, find kayden's age.
NISA [10]

Based on the fact that Kayden is the youngest and their ages are consecutive and add up to 90, the Kayden is 21.

<h3>How old is Kayden?</h3>

To find Kayden's age, assume that it is x and use the formula:

90 = x + (x + 1) + (x +2) + (x +3)

Solving for x gives:

90 = 4x + 6

4x = 90 - 6

x = 84 / 4

x = 21

Find out more on solving for age at brainly.com/question/11757623

#SPJ4

6 0
1 year ago
PLEASE HELP (image included) Graph the solution of the equation b - 11 = -8
lesantik [10]

It is the third number line.

b-11=-8

What minus 11 would equal -8? 3!

8+3=11 so it would make sense that the dot would be on 3.

smaller numbers minus larger numbers (such as this equation) always end up being negative, so if you have the answer and at least one of the other numbers, it will be easy to figure out.

In this case you would want to maybe just imagine 11-8=? or go 8+?=11.

11-8=3 and 8+3=11. There you would have your missing number.

4 0
3 years ago
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