m angle 6= 210
I'm not sure about this question
1/7 is your answer. It can't be reduced any further. If there is supposed to be a problem, next time, add it.
Lets see
a and b are legs
c=hypotnuse
a^2+b^2=c^2
10^2+b^2=10^2
100+b^2=100
minus 100 both sides
b^2=0
b=0
false, if you have a leg legnth 0, then they lines are right on top of each other
no cannot
5/6 chance that the next marble will be a white one
Since the square root of 13 is something really weird (3.6055 something) and does not have a clear end or repeats, it is irrational. Solve for the number before assuming anything