The answer is B. In 10 hours, the phone would completely lose its charge.
Y=-10(10)+100=-100+100=0
Answer: 1846.1604 (idk if you needed it worked out but that’s the answer w all decimal places)
The reference angle for a 240° angle is 60°
<h3>How to calculate reference angles</h3>
A reference angle is the angel that is found on the first quadrant of a a circle.
The angle that is being measured is in the third quadrant of a circle, we will subtract 180° from the given angle.
Therefore, the reference angle for a 240° is =
240-180= 60°
Learn more about reference angles here:
brainly.com/question/1603873
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