Check the picture below.
notice the left-side, that's the inscribed angle theorem, as you'd already know.
now, notice the right-side, the inscribed angle at vertex C, is intercepting the arc at AB, however, the angle at vertex D, is also intercepting the arc AB, what the heck does that mean?
well, it means the angle at D, is the same as the angle at C, thus ∡D is 40°.
and then the triangle ADB has then two angles, a 60° one and a 40° one, the angle at B, namely ∡DBA is 180 - 60 - 40.
Answer: 72
Because the picture shows that there's a 90 degree angle in the bottom. We know that the bottom triangle is a 45-45-90 triangle. So the length of one side is 18 because a 45 45 90 triangle has two sides that are equivalent (x) and one side that is x. So now that we know the length of one side is 18, we know the lengths of all 4 sides. Adding them up ( 18 + 18 + 18 + 18) gives 72, which is the perimeter.
Probability=13/52*12/51*11/50*10/49=11/4165
70,000,000 * 82,445,346
= 5.77117422E+15
That’s what comes out lol
Answer:
12-3y-2x+x+2x = x-3y+12
3x+2y-2x+y+12 = x+3y+12
4y+3y+3x-6y-10-2 = 3x+y-12
x+3y+2x-3x+7+5 = 3y+12
Step-by-step explanation: