class A has 13 pupils and class b has 28 pupils both classes sit the same maths test the mean score for class A is 23 the mean s
1 answer:
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Answer:
see below
Step-by-step explanation:
The slopes of parallel lines are the same. The slopes of perpendicular lines are negative reciprocals of each other, hence their product is -1.
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For the most part, the concept of adding slopes of lines does not relate to parallel or perpendicular lines in any way.
