Answer:
A jar contains 5 red, 4 blue, and 3 yellow marbles.
The probability of pulling a red marble, then pulling a blue marble, without replacement would be:
P = 5/(5+4+3) x 4/(5+4+3-1) = 5/12 x 4/11 = 0.15 = ~0.2
Hope this helps!
:)
The one all the way to the left matches with 1/7
1/18 matches with 0.05
0.5 matches with square root of 0.25
2/3 matches with 0.6
That's all I can help with.
So this is where the Pythagorean theorem comes in: a squared + b squared = c squared.
One of the basic pythagorean triangles is the 3-4-5 triangle and you can use any multiples of that triangle and get a right triangle (like multiple 3-4-5 by 2 to get a 6-8-10 right triangle, multiple 3-4-5 by 3 to get a 9-12-15 triangle, etc).
So you could do 6, 8, and 10. 6 squared is 36, 8 squared is 64, and 10 squared is 100. 36 + 64 = 100, so it works.
