Bond Daniel
12/06/2023 · Junior High School
Which one of the following statements is true? Compare \( .98 \ldots . . .980 \) using (<, >, =) A) \( .908<.9008 \)
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Step-by-step Solution
To compare the two numbers \(0.98\ldots\) (which represents the repeating decimal \(0.980980980\ldots\)) and \(0.9008\), we can analyze their decimal representations.
1. **Understanding \(0.98\ldots\)**:
- The number \(0.98\ldots\) can be expressed as \(0.980980980\ldots\), which is a repeating decimal.
- This can be interpreted as \(0.98\) followed by the repeating sequence \(0.980\).
2. **Understanding \(0.9008\)**:
- The number \(0.9008\) is a finite decimal.
Now, let's compare the two numbers:
- The first few digits of \(0.980980980\ldots\) are \(0.980\).
- The first few digits of \(0.9008\) are \(0.9008\).
Now we can compare them digit by digit:
- The first digit after the decimal point is the same for both: \(0\).
- The second digit is also the same: \(9\).
- The third digit is where they differ: \(0.980\) has \(0\) while \(0.9008\) has \(0\).
- The fourth digit in \(0.9008\) is \(8\), while \(0.980980980\ldots\) continues with \(9\).
Since \(0.980\) is greater than \(0.9008\) (because \(0.980 > 0.9008\)), we can conclude that:
\[
0.980980980\ldots > 0.9008
\]
Thus, the correct comparison is:
\[
0.98\ldots > 0.9008
\]
Now, let's evaluate the statement \(0.908 < 0.9008\):
- Comparing \(0.908\) and \(0.9008\):
- The first digit after the decimal point is the same: \(0\).
- The second digit is also the same: \(9\).
- The third digit of \(0.908\) is \(8\), while the third digit of \(0.9008\) is \(0\).
Since \(0.908 > 0.9008\), the statement \(0.908 < 0.9008\) is false.
In conclusion, the true statement is:
\[
0.980980980\ldots > 0.9008
\]
And the statement \(0.908 < 0.9008\) is false.
Quick Answer
The true statement is \(0.98\ldots > 0.9008\). The statement \(0.908 < 0.9008\) is false.
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