In trigonometry, we start from the point (1,0), so this is the 0-degree point. Then, we start rotating counter clockwise along the unit circle.
Note that rotating 180 or -180 degrees is actually the same, because you travel half the circumference clockwise or counter clockwise. In both cases, you start from the rightmost point of the circle, (1,0), and arrive at the leftmost point, (-1,0).
Now, for every point (x,y) on the unit circle, given by a certain angle
, we have

So, in this case, the angle of -180 is associated with the point (-1,0), and thus we have

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Answer:
405 calories.
Step-by-step explanation:
To solve, we can create a proportion.
We are given that 4 nuggets is equivalent to 180 calories, therefore:

Cross multiply:
9 · 180 = 4 · x
1620 = 4x
Divide both sides by 4:
x = 405 calories.
Answer:
When temperature is 30 in degrees Celsius then temperature in degree Fahrenheit is 86.
Step-by-step explanation:
Let C denotes the temperature in degree Celsius and F denotes the temperature in degree Fahrenheit.
According to the given question,
To convert to Fahrenheit we multiply the Celsius temperature by 9/5 and add 32.
Mathematically it can be written as,
For example , let us take the temperature in mexico to be 30 degrees Celsius to convert the temperature to Fahrenheit we can use this equation as ,
Put C = 30, we get
Thus, when temperature is 30 in degrees Celsius then temperature in degree Fahrenheit is 86.