echofire18

1.) 1/8pi

1.) The angles are 56, 90 and 34.

There are many examples you can find. .3 repeating is 1/3.

Good afternoon. It is a good day to play in a jazz band.

https://www.youtube.com/watch?v=-5YShgaZoNg

This is the forumla

Equilateral triangles have all equal sides and angles.

180 deg is in one triangle and divide it among the 3 sides and you get 60 deg.

So,

5y+10=60

y=10

1.)

8x + 50 = 130

x = 10

2.)

2x + 3x + 3x = 180

x = 45/2

y = 2x

y=2(45/2)

y=45

9pi /4

First, make you can make a good guess of what the missing point is by looking at the graph. (5,-2)

https://www.desmos.com/calculator

The you can see that a radius created here and the intersecting area is essentially an area of a sector, which (1/2) * (r^2) * the angle of the sector.

The second choice I think. Graph on this site below and see what the answer is.

https://www.desmos.com/calculator