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1). This isn't a mathematical proof or definition, but it turns out that any number
that you can completely write with digits is rational. We will now attempt to write
2.7 completely, using digits:
2.7We did it! So we're pretty sure that 2.7 is probably a rational number.Now we'll check it out according to the official mathematical definition:
2). "A rational number is any number that can be written as the ratio of two whole numbers."
We will now attempt to write 2.7 as the ratio of two whole numbers:
27/10Again, we've succeeded! So 2.7 is definitely a rational number.
yes
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Is the square root of 27 a rational number?
No, the square root of 27 is not a rational number. A rational number is a number that can be expressed as a fraction where both the numerator and denominator are integers. The square root of 27 is an irrational number because it cannot be expressed as a simple fraction and its decimal representation goes on indefinitely without repeating.
Is the product of a rational number and a rational number a rational number?
yes
Is a rational number multiplied a rational number rational?
Yes.
Which number can be multiplied to a rational number to explain that the product of two rational numbers is rational?
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
Is the number 17.5 a rational number?
yes
Is 2.7 irrational?
No, it is rational.
Is 27 a real number?
Yes, 27 is a real number. Real numbers include all rational and irrational numbers, and 27 is a rational number because it can be expressed as a fraction, 27/1.
Is 27 an irritational number?
No. 27 is a whole number, and all whole numbers are rational.
Is square root of 27 a rational number?
No.
Is the square root of 27 a rational number?
No, the square root of 27 is not a rational number. A rational number is a number that can be expressed as a fraction where both the numerator and denominator are integers. The square root of 27 is an irrational number because it cannot be expressed as a simple fraction and its decimal representation goes on indefinitely without repeating.
Is 27 a rational number or an irrational number?
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have done that.
Is -27 a whole rational number and a integer?
Yes.
Can 3-27 a rational number?
30
Is 27 a rational or irrational number?
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have accomplished that.
Is the square root of 729 rational?
The square root of 729 is 27.Yes, it is a rational number because 27 can be written as simple fraction, 27/1.
Suppose that x is a number between 2 and 27 For how many different values would be rational number?
There are infinitely many rational numbers between 2 and 27.
Is 5.4 an irrational or rational number?
5.4 = 5 2/5 = 27/5 so it is a rational number.
