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kipiarov [429]
3 years ago
10

A regular polygon has an exterior angle of 8. what is the sum of all the interior angles

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

7740 degrees.

Step-by-step explanation:

The sum of the exterior angles of all polygons add up to 360 degrees.

So the number of sides and the number of interior angles  in this polygon = 360 / 8 = 45.

Each internal angle = 180 - 8 = 172 degrees, so the sum of all interior angles

= 172 * 45

= 7740 degrees,

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Which of the following graphs shows a parabola with a vertex of (1,-9) and solutions of (-2,0) and (4,0)?
Mariulka [41]

Answer:

Hello,

Step-by-step explanation:

Roots are -2 and 4

y=k*(x+2)(x-4)

Vertex = (1,-9) is a point of the parabola

-9=k*(1+2)(1-4) ==> k=1

Equation of the parabola is y=(x+2)(x-4)

But you don' t have given the graphs !!!!

3 0
3 years ago
ms. eskew's class had a class average of 77 % on their math test. how would this be written as a ratio? a. 23:100 b. 77:100 c. 5
valina [46]
Writing in percentages is actually writing a fraction with 100 on its denominator.
By doing so, we can easily compare data.
For example 1/2 may be written as 50/100 and it is denoted by 50%.

So, in your question, 77% means 77/100.
Since fractions represent ratios, writing in ratio form, we get 77:100. The answer is (b)77:100
3 0
3 years ago
What is a correct name for the angle shown?ROZROLSO ZRTSOZSRTST
Shalnov [3]

Given: Different points and an angles as found in the image

To Determine: The correct name of the angle shown

Solution

An angle is formed when two lines meet at a point. This is as shown below

Let us apply the above to the given image

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7 0
1 year ago
Simplify the following polynomial expression​
Juli2301 [7.4K]

Distribute the negative sign

7x^2-3x-6

Combine like terms

-9x^2 + 7x^2 = -2x^2

9x - 3x = 6x

13 - 6 = 7

-2x^2 +6x + 7

<u>Answer</u>

-2x^2 +6x + 7

3 0
4 years ago
Which is the best estimate for the percent that is represented by the shaded portion of the diagram?
ivolga24 [154]
3 divided by 8 = 0.375
0.375 x 100 = 37.5%
37.5% is closest to 38%
7 0
3 years ago
Read 2 more answers
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