A decimal expansion means to write out the base 10 digits of a number. Because irrational numbers do not have a closed form, the decimal expansion will always be an approximation. Consider the irrational number pi, which has the following decimal expansion: 3.14159265... Of course there are more digits to pi than that, which is denoted by the "...". It is sadly impossible to list ALL of the digits of an irrational numbers, since if there were a finite number of digits, you could express it as a fraction, which would not be irrational.
30 and 20 hundredths in decimal form is written as 30.20. In this form, the whole number 30 is followed by the decimal point, and the fractional part 20 hundredths is expressed after the decimal point. This represents the number 30.20 in decimal form.
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. So the required decimal representation is 30, exactly as in the question.
It is expressing a number in decimal form: that is, a form in which the place value of each digit is one tenth the place value of the digit to its left.
Do nothing. 30 is in decimal form, though if you must, you can rewrite it as "30." 30.0 indicates a higher number of significant digits and so is not appropriate to use it.
8
The decimal expansion of an irrational number is non terminating and non recurring
It is the number 0 The number zero first appears at digit 32
It is the decimal approximation to the value of the irrational number.
If its a rational number then its decimal equivalent can be expressed as a fraction
No. If the decimal expansion falls into a repeating pattern (however long) then the number is rational. For example, 0.33... is the rational number 1/3. or 0.04142857142857... where the pattern 142857 continues forever is the rational number 29/700.
It is 300 + 50 + 7.
A decimal expansion means to write out the base 10 digits of a number. Because irrational numbers do not have a closed form, the decimal expansion will always be an approximation. Consider the irrational number pi, which has the following decimal expansion: 3.14159265... Of course there are more digits to pi than that, which is denoted by the "...". It is sadly impossible to list ALL of the digits of an irrational numbers, since if there were a finite number of digits, you could express it as a fraction, which would not be irrational.
30.0 If the 30 is a whole number: 30.00 would be the decimal.
30 percent as a decimal is 0.3 (divide a percent by 100 to get the decimal value)Multiply the number by 0.3 to determine 30% of the number.
The number 30, itself, is a decimal number. So it is the nearest.There is no other "nearest" number. If there were, the number halfway between that number and 30 would be nearer to 30. And then the number halfway between that number and 30 would be nearer still. And so on.
030 is 30, which is a number in the decimal system.