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What are all of the combination of a 3 dice roll?
The ans is 56. http://www.quadibloc.com/other/bo0201.htm http://mathforum.org/library/drmath/view/56115.html
Why do you multiply the sum of the squared rank differences by 6 in the Spearman's Rank Correlation formula?
Try this link: http://mathforum.org/library/drmath/view/52774.html - its quite a complicated explanation!
How can you proove that root 3 and root 5 are irrational?
See http://mathforum.org/library/drmath/view/52619.html for a proof of the irrationality of sqrt(3). The proof that sqrt(5) is irrational is identical (substituting 5 for 3 in the proof).
Can you find the sides of a triangle given one side of 117 feet and one angle of 90 degrees?
Unfortunately, no. You need three pieces of data to define a triangle, three sides, two sides and the angle between them, or two angles and the side between them. http://mathforum.org/library/drmath/view/62849.html
How do you you measure angles?
With a protractor. A protactor looks like a semi circle. At the bottom of the the protractor there will be another semi circle but much smaller with a dot in the middle. To learn how to use a protractor or how to measure a circle go to this website http://mathforum.org/library/drmath/view/57664.html It will tell you almost everything on how to measure angles.
