Answer: 12-n=25
-n=25-12
-n=13
Step-by-step explanation:
In order for two linear lines to be perpendicular, the product of their gradient must be -1.
Let's take y = x + b and y = -x + b
This is already in the form: y = mx + b, where m is 1 and -1 respectively.
Since the product of their gradient is -1, they are said to be perpendicular.
Open or closed? because if it's closed then the the answer is D
Answer:
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Answer
Positive 8 is the missing value
Step-by-step explanation:
-11 + 8 = -3
