Q: Can x x equals 45 if x is a rational numbers?

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no x² is the product of 2 rational numbers in this case the same 2 numbers x and x The product of two rational numbers is always rational.

The sum of 45 and 15 equals 60. 15 x 3 equals 45.

The additive identity for rational numbers is 0. It is the only rational number such that, for any rational number x, x + 0 = 0 + x = x

x = 45

X-45=12 ________ +45 +45 ________ x= 57

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no x² is the product of 2 rational numbers in this case the same 2 numbers x and x The product of two rational numbers is always rational.

The sum of two numbers is 45 and their difference is 5. What are the two numbers? Let's start by calling the two numbers we are looking for x and y. The sum of x and y is 45. In other words, x plus y equals 45 and can be written as equation A: x + y = 45 The difference between x and y is 5. In other words, x minus y equals 5 and can be written as equation B: x - y = 5

The sum of 45 and 15 equals 60. 15 x 3 equals 45.

The additive identity for rational numbers is 0. It is the only rational number such that, for any rational number x, x + 0 = 0 + x = x

x = 45

X-45=12 ________ +45 +45 ________ x= 57

That is the property of infinite density of rational numbers. If x and y are any two rational numbers then w = (x + y)/2 is a rational number between them. And then there is a rational number between x and w. This process can be continued without end.

If both numbers are rational then x plus y is a rational number

If you have a set of 45 numbers, then there is one combination that includes all 45 numbers and 45! = 45 x 44 x 43 x ... x 2 x 1 ≈ 1.19622 x 1056 permutations (ways of ordering) all 45 numbers.

I t is the number 0, which has the property that x + 0 = 0 + x = x for all rational numbers x.

Yes, because when x equals 1, the square root of x is rational and the square root of -x is irrational, and when x equals -1, the square root of x is irrational and the square root of -x is rational.

1 x 405, 3 x 135, 5 x 81, 9 x 45, 15 x 27