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algol [13]
3 years ago
11

Somebody please help

Mathematics
1 answer:
Phantasy [73]3 years ago
3 0

Answer:

ln;cjh

Step-by-step explanation:

cJZfhlanssfiusdfhjkhuhajkhj kh lkjjljf;lakjsdlfkasld j lij lkflaksdfd ljilkjljijdfasdfj

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Given a regular decagon, find the measures of the angles formed by (
Sonja [21]
A decagon has 10 sides (think decade and decathlon). From the center of the decagon we draw the radii and in doing so we take the area of the decagon and divide it into 10 congruent Triangles.

The angles around the center add up to 360 because they form a circle and since there are 10, they each measure 36 degrees. So the answer to the first part (the angle between the radii) is 36 degrees.

Each of these triangles has two equal sides (both radii) so is Isosceles. That means that the base angles are congruent. So the two angles that are left in each triangle must measure the same. Since the angles in a triangle add up to 180 degrees, we know that the two remaining angles are together equal to 180-36=144 degrees. Since they are equal in measure they each measure 72 degrees.

Thus the answer to the second part, trhe measure of the angle between a radius and the side of the polygon is 72 degrees.




3 0
3 years ago
How do you write the expressions part
statuscvo [17]
Could you possibly post a more high quality picture so its not blurry thanks!
7 0
3 years ago
Which of the following statements about the NCUA is correct?
Marina86 [1]

Answer:

A.

Step-by-step explanation:

7 0
2 years ago
The regression equation y=0.5x+1.3 approximates the number of hours it takes to arrange a dinner event, y, given the number of p
Sphinxa [80]

It would be C.

For example, say 1 person comes. This would be x=1. Plugging this in gives you,

y=0.5 + 1.3

This shows that C is true since x is always going to be multiplied by 0.5.

1.3 would be the base amount of time it takes to arrange since if it the y-intercept.


5 0
3 years ago
−2x = 4y + 6 2(2y + 3) = 3x − 5 What is the solution (x, y) to the system of equations above
Wewaii [24]

Answer:

(1;-2)

Step-by-step explanation:

x=-2y-3

2(2y+3)=-6y-9-5

10y=-20

y=-2

x=4-3=1

6 0
3 years ago
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