Answer:
144x=1728
Step-by-step explanation:
144 credit hours and x will be the cost per hour equals the total 1728. Its 12 dollars an hour
Answer:
If 7 minus 5 equals 2, then 7 minus 2 equals 5.
Step-by-step explanation:
This is because of the associative property of equality.
<em><u>Please post #teamtrees #PAW (Plant And Water) if you have social media :)</u></em>
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