Step-by-step explanation:
72 = 6*12 = 3*2 * 4*3 = 3*2*2*2*3
72 = 2*2*2*3*3
72=2^3 * 3^2
You can check your answer by multiplying out the factors
2*2*2*3*3
2*2 is 4
4*2 is 8
8*3 is 24
24*3 is 72
checks
Answer:
1.232323232323 excetera
Step-by-step explanation:
Answer:
The only irrational number if √9/31
Step-by-step explanation:
Rational numbers can all be written in the form of a/b in which both a and b are integers. 9/31 is already written that way. When we take the square of the first one, we get 3/4. And 0.66666 is 2/3. Therefore, only √9/31 is not a rational number.
