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There are many types of rolling offsets. 2 common are rolling offset using 45 degree fittings and a rolling offset using any angle.
using 45's
Rise: elevation change
roll: run of the pipe moving to the left or right
Travel: the run of pipe to make the offset
Simple formula
Travel = SQRT((rise(squared) + Roll(squared) ) x 2)
rise = 10"
roll= 16"
Travel=?
travel= SQRT ( ((10 x 10) + (16 x 16)) x 2 )
travel= SQRT ( ((100) + (256)) x 2 )
travel= SQRT ( ( 356 ) x 2 )
travel= SQRT ( 712 )
Travel= 26.68333 or 26-11/16"
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Two dice are rolled Find the probability that the score on the dice is either 12 or at most 4?
The problem can be split into two parts, rolling a 12, or rolling a 4 or less. This can be further broken down to rolling a 2, rolling a 3, rolling a 4, or rolling a 12. P(rolling 4 or less, or 12) = P(rolling 4 or less) + P(rolling 12) = P(rolling a 2) + P(rolling a 3) + P(rolling a 4) + P(rolling a 12) = 1/36 + 2/36 + 3/36 + 1/36 = 7/36
What is the probability of rolling a 7 or 11 with two dice?
The probability of rolling a 7 with 2 dice is 6/36; probability of rolling an 11 is 2/36. Add the two together to find probability of rolling a 7 or 11 which is 8/36 or 2/9.
What is the probablity of rolling the sum of 12 on 2 dice?
There are 36 outcomes for rolling 2 dice, and there is 1 way that a 12 can occur which is 6,6. So, the probability of rolling the sum of 12 on 2 dice is 1/36.
What is the probability of rolling the sum of 10 with 2 dice?
Well there is 36 different possibilities with rolling 2 6 sided dice. The probability of rolling the sum of 10 with 2 die is 4/36 or 1/8 chance.
Rolling an even number on a die?
Probability of rolling an even number on a die is 1/2.
