<h3>
Answer: D) 130.5 degrees</h3>
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Work Shown:

Note: I used the law of cosines. Make sure your calculator is in degree mode.
Answer: Period = 4
Amplitude = 3
<u>Step-by-step explanation:</u>
Period is the interval of one "cycle" before the pattern repeats.
If you notice that when x = 0, y = -4.
When does the pattern repeat (reach -4 again)?
Answer: when x = 4.
So the interval of one "cycle" is 4 units --> Period = 4.

This would be true.
All the place values and it numbers are correct.
Your answer would be true.
Hope this helps!
Answer:
The mean reflects the best measure of the center
Step-by-step explanation:
12, 13, 13, 14, 21, 22, 23
Median: 14
Mean: 16.86
The mean reflects the best measure of the center
5 hours if you convert 180 kilometers to meters its 180,000 meters. 180,000 meters time 5 is 900,000