Question

Write each repeating decimal using bar notation
a. 0.9222
b.0.7777….

Answer 1

Repeating decimals are written in bar notation by placing a bar over the digits that repeat indefinitely; for 0.9222... it's 0.92 and for 0.7777... it's 0.7.

Step-by-step explanation:

When writing repeating decimals using bar notation, you place a bar (also known as a vinculum) over the digits that repeat indefinitely. Here are the repeating decimals written using bar notation:

1. 0.9222... would be written as 0.92 with a bar over only the last 2, indicating that only the digit 2 repeats infinitely.
2. 0.7777... would be written as 0.7, with a bar over the 7, indicating that the digit 7 repeats infinitely.

Remember, bar notation is a way to clearly show which part of a decimal is repeating. It's also important to position the bar correctly over the repeating digits for clear communication.