Question

Answer and get brainlist (answer fast and correct)​

Answer 1

Answer:

This is because the angle between two perpendicular lines is 90º (by definition) and that between two parallel lines will be 0º.

Step-by-step explanation:

2.if a number is multiplied to 1 the resultant will be the number itself

3.Variable and constant

4.Closure property does not hold in integers for division. Division of integers doesn't follow the closure property since the quotient of any two integers a and b, may or may not be an integer.

5n + m is odd -->. The sum of two integers is odd only if one is odd and another is even, hence may or may not be odd. Not sufficient.

Answer 2

Answer:

This is because the angle between two perpendicular lines is 90º (by definition) and that between two parallel lines will be 0º.

Step-by-step explanation:

2.if a number is multiplied to 1 the resultant will be the number itself

3.Variable and constant

4.Closure property does not hold in integers for division. Division of integers doesn't follow the closure property since the quotient of any two integers a and b, may or may not be an integer.

5n + m is odd -->. The sum of two integers is odd only if one is odd and another is even, hence may or may not be odd. Not sufficient.

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