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It is the number of combinations of four numbers where the number of available digits starts at 10 and reduces by 1 each time.

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How many strings of four decimal digits a do not contain the same digit twice?

To find the number of strings of four decimal digits that do not contain the same digit twice, we can use the principle of counting permutations. For the first digit, we have 10 options (0-9), for the second digit, we have 9 options (since one digit has already been used), for the third digit, we have 8 options, and for the fourth digit, we have 7 options. Thus, the total number of such strings is calculated as (10 \times 9 \times 8 \times 7 = 5040).


Why is the size of a decimal number not necessarily determined by the number of decimal places notated?

Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude.


What is a decimal which has a final number of digits?

It is a terminating decimal.


Why do you separate 5 digits in tele phone number?

Most people can remember strings of 4-5 digits. Longer strings are harder.


Repeating decimal definition?

A repeating decimal is a number expressed in decimal form in which, after a finite number of miscellaneous digits, the number continues with a string of a finite number of digits which repeats itself without end.

Related Questions

How many strings of four decimal digits a do not contain the same digit twice?

To find the number of strings of four decimal digits that do not contain the same digit twice, we can use the principle of counting permutations. For the first digit, we have 10 options (0-9), for the second digit, we have 9 options (since one digit has already been used), for the third digit, we have 8 options, and for the fourth digit, we have 7 options. Thus, the total number of such strings is calculated as (10 \times 9 \times 8 \times 7 = 5040).


Why is the size of a decimal number not necessarily determined by the number of decimal places notated?

Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude. Digits after (to the right of) the decimal point contribute to the accuracy of the number, not its magnitude (or size). So only the digits to the left of the decimal point contribute to the magnitude.


Is a decimal number with two digits is sometimes equal to a decimal number with three digits?

Only if the final digit, after the decimal point, is zero.


How many strings of four decimal digit have exactly three digit that are nine?

The number of strings of four decimal digits that have exactly three digits which are nine is the number of ways to choose three places to choose the nines multiplied by the number of possibilities for the other digits (because you can put all of the possibilities in an array so that each column has a different way of arranging the nines and that each row has a different set of other digits (because they do not affect each other)). The number of ways to choose the three places to choose the nines is the same as the number of ways of choosing 4-3=1 spot for there not to be a nine. The number of ways of choosing 1 spot where there are 4 spots is 4 (the first, the second, the third, or the fourth). Since there are 9 digits that are not nine, the number of choices for the other digits is 9 (since there is only one digit). Thus, there are 4*9=36 strings of four decimal digits that have exactly three digits which are nine.


What is a decimal which has a final number of digits?

It is a terminating decimal.


Why do you separate 5 digits in tele phone number?

Most people can remember strings of 4-5 digits. Longer strings are harder.


What is a decimal number which ends after a finite number of digits after the decimal point is called?

It is a terminating decimal.


Repeating decimal definition?

A repeating decimal is a number expressed in decimal form in which, after a finite number of miscellaneous digits, the number continues with a string of a finite number of digits which repeats itself without end.


How many digits does 0.03 have?

The number 0.03 has two significant digits, which are the digits "3" and "0" after the decimal point. However, in terms of total digits, it has three digits: the "0" before the decimal, the "0" after the decimal, and the "3."


Is 7.11 rational or irrational?

A number with a finite number of decimal digits is always rational. (If the number of decimal digits is infinite, the number is rational only if there is a repeating pattern.)


What is a number with one or more digits that is to the right of a decimal?

It is a decimal fraction.


A decimal with finite number of digits?

Repeating