Decimals are real. They can be rational or irrational.
The number 1.68 belongs to the subsets of real numbers known as rational numbers and decimal numbers. As a rational number, 1.68 can be expressed as the ratio of two integers (84/50). It is also a decimal number, specifically a terminating decimal, where the digits after the decimal point eventually end.
Yes, it is. Moreover, it is also a rational number. 1.25 * 4 = 5, so 1.25 = 5/4. All rational numbers are real numbers, so 1.25 is real. Any number you can think of, using decimal notation is real. Real numbers are allowed to have an infinity of digits (behind the decimal point).
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. Since we normally count in tens, almost all the numbers that we come across are decimal numbers.
175.23*10^-2
Yes, However, it is not defined that way. It is defined as a number that cannot be expressed precisely as a ratio of two real numbers (a fraction). But that is equivalent to a non-repeating decimal.
Yes, -1/2 or -0.5 is a real number. It is also a rational number and a nonrepeating decimal rational number. All negative and positive numbers as well as zero are real numbers. The real numbers also includes the irrational numbers.
Decimals are real. They can be rational or irrational.
Any real number can be represented as a decimal number.
Any decimal number is a real number.
A real number. Or, the decimal representation of a real number.
Any real number has an equivalent decimal representation.
Any real number can be written as a decimal.
Yes.
It can be any real number.
real number
Yes.