Question

Which expression will simplify to 1? Assume m #9 and m = -9.

○
m+9 m+9
m-9 m-9
○ [m+m+9)
m-9
m+9
O
m+99+m
m-9 9-m
m+9 9-m
m-9 9+m

Answer 1

i just want a streak

Explanation:

To find the expression that simplifies to 1, let's evaluate each option using the given values.

1. m+9 / m+9: When m = -9, this expression becomes (-9 + 9) / (-9 + 9) which simplifies to 0 / 0. Since division by zero is undefined, this expression does not simplify to 1.

2. m-9 / m-9: When m = -9, this expression becomes (-9 - 9) / (-9 - 9) which simplifies to (-18) / (-18). Simplifying further, we get 1. Therefore, this expression simplifies to 1.

3. [m+m+9) / m-9: This expression is not complete or clear, so we cannot evaluate it.

4. m+9 / m: When m = -9, this expression becomes (-9 + 9) / (-9) which simplifies to 0 / (-9). Since any number divided by zero is undefined, this expression does not simplify to 1.

5. m-9 / 9-m: When m = -9, this expression becomes (-9 - 9) / (9 - (-9)) which simplifies to (-18) / (18). Simplifying further, we get -1. Therefore, this expression does not simplify to 1.

6. m+9 / 9-m: When m = -9, this expression becomes (-9 + 9) / (9 - (-9)) which simplifies to 0 / 18. Simplifying further, we get 0. Therefore, this expression does not simplify to 1.

Based on the evaluations, the expression that simplifies to 1 is m-9 / m-9.