Repeating decimals are rational....but they have to be repeating.
The only one that is not repeating is : D .131131113...now if the last 3 digits would have been 131 instead of 113, then it would have been rational.
Classify each of the following products as rational or irrational
3÷5 * √4 = 3÷5 * 2 = 3*2÷5 = 6÷5 Rational can be written as a ratio of two integer numbers.
3÷5 * √2 = Irrational can't be written as a ratio of two integer numbers.
2÷3 * √7 = Irrational can't be written as a ratio of two integer numbers.
2÷3 * √3 = Irrational can't be written as a ratio of two integer numbers.
2÷9 * √1 = 2÷9 * 1 = 2÷9 = Rational can be written as a ratio of two integer numbers.
2÷5 * √9 = 2÷5 * 9 = 2*9÷5 = 18÷5 Rational can be written as a ratio of two integer numbers.
Hope this helps!
Answer:
A: scalene: non have the same angel
B: isosceles: two sides have the same angel
C: isosceles:two sides have the same angel
D: equilateral:all sides do