Write 58 as a decimal. Use bar notation if necessary.
The Correct Answer and Explanation is :
The correct answer is: (58.0)
To express the number (58) as a decimal, we can simply write it as (58.0). There is no need for bar notation in this case since it is a whole number followed by a decimal point and a zero, indicating that there are no digits beyond the decimal point other than zero.
Explanation
Decimals are a way to represent fractions or whole numbers in a base ten system. The number (58) is an integer, meaning it has no fractional part. When converting whole numbers to decimals, the number remains the same, but it can be expressed in a decimal format.
In decimal notation, the position of digits to the right of the decimal point represents tenths, hundredths, thousandths, and so on. In the case of (58), when we express it as (58.0), the digit (0) in the tenths place tells us there are no tenths present, which is consistent with the original whole number.
Bar notation is typically used to indicate repeating decimals, such as (0.333…), which can be represented as (0.\overline{3}). However, in the case of the number (58), since it does not have a repeating decimal or fractional part, bar notation is unnecessary.
Decimals are particularly useful in various mathematical contexts, such as when performing arithmetic operations or when more precision is required, such as in measurements. They allow for a straightforward representation of numbers and facilitate operations like addition, subtraction, multiplication, and division, especially when working with fractions.
In summary, (58) expressed as a decimal is simply (58.0), clearly indicating that there are no digits after the decimal point besides zero. This representation confirms that (58) is a whole number and is easy to understand in both mathematical and real-world contexts.