40+1
50-9
4(10)+1
410/10
There are a lot of answers
Answer:
First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100. If your answer is a negative number then this is a percentage decrease.
Answer: 
<u>Add 5 to both sides</u>
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<u>Divide both sides by 60</u>
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6. -√ 2 / 2
8. -√3 / 2
If you look at the chart provided, it gives you the unit circle, which has every angle in degrees, radians, and precise values.
the given is ordered as such: (cos, sin)