7 is a rational number and it is also a Prime number
7 is rational.
-7 is the ratio of -7 and 1 ... nice and rational.
rational
Rational
7 is a rational number because whole numbers, integers, and natural numbers fit under rational and 7 is a natural number:)Yes.
7 is the ratio of 7 to 1 ... a perfectly rational number.
rational
is 5 over 7 a rational number
Assuming that you mean pi, and not pie, it is not a rational number.The set of rational numbers is a field and this means that for every non-zero rational number, there exists a multiplicative inverse in the setand also, due to closure, the product of any two rational numbers is a rational number.Now suppose 7*pi were rational.7 is rational and so there is its multiplicative inverse, which is (1/7).(1/7) is also rational so (1/7)*(7*pi) is rationalBut by the associative property, this is (1/7*7)*pi = 1*pi = pi.But it has been proven that pi is irrational. Therefore the supposition must be wrong ie 7*pi is not rational.
No, it is rational 56/7 = 8 which is rational
Rational.
It is 7.