<span>B) A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?</span>
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Well divide the numbers to find the unit rate so it’s 200 meters in a minute I think
The slope is 1. The picture will show you why.
Answer:
option C. 
Step-by-step explanation:
we have that
The point (-5,-12) belong to the III quadrant
so
The value of the cosine is negative
Applying the Pythagoras Theorem
Find the value of the hypotenuse

The value of cosine of angle θ is the ratio between the side adjacent to angle θ and the hypotenuse
