Answer:
The LCM of 15 and 5 is, 15.
Step-by-step explanation:
Answer:
Part 1) 11 is a rational number
Part 2)
is a irrational number
Step-by-step explanation:
we know that
A <u><em>Rational Number</em></u> is a number that can be made by dividing two integers
Part 1) we have

we know that

substitute

Is a rational number, because i can express the number 11 as the ratio of two integers (as example 11/1)
Part 2) we have

we know that

substitute

Is a irrational number, because cannot be expressed as the ratio of two integers
It is 9 because all the other numbers are in the 80s and 90s 9 is way to low.