Step-by-step explanation:
cosine=<u>Adjacent</u>
Hypotenuse
Evaluate the radical.
2 answers:
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Answer:
Step-by-step explanation:
Method #1
We can draw a <em>right triangle</em> on the graph upon where the points are located and use the Pythagorean Theorem:
* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.
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Method #2
Or, we can use the Distance Formula:
<em>B</em>[7, 10] <em>A</em>[13, 2]
* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.
** You see? It does not matter which method you choose, as long as you are doing the work correctly.
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