"The sum of two irrational numbers<span> is SOMETIMES </span>irrational<span>." The </span>sum of two irrational numbers<span>, in some cases, will be </span>irrational. However, if their rational<span> parts of the </span>numbers<span> have a zero </span>sum<span>(cancel each other out), the </span>sum<span> will be rational.</span>
I don't think it matters how many families are involved.
You're talking nine live births, and the probability of a
male birth each time is 50% .
So the probability of nine males in nine births is
(1/2)^9 = 1/512 = about <em>0.195 percent </em>(rounded)
The smaller one is a quarter of the original (
). That is, 2.35. The longer one is 3 times that: 7.05. Rounding gives us 7.1 meters.
The answer is 2/11 get the app Socratic for math answers it will tell you answers and how to do it