The answers should be: (-2,5), (-2,-2), (-6,-1), (2,1)
Hope this helped :)
Answer:
Step-by-step explanation:
there are 36 squares
red takes 1 of 4 so red has 9
blue takes 1 of 3 so blue has 12
5 of 12 of the grid is yellow
Answer:
1.about 180 degrees
2.45 degrees
3.1.5
4.4/5
Step-by-step explanation:
Answer:
£32.76
Step-by-step explanation:
21/500=0.042
780x0.042 = 32.76
Answer:
The answer is a² .
Step-by-step explanation:
You have to substitute x and y into the expression :
![let \: x = a \cos(θ) \\ let \: y = a \sin( θ)](https://tex.z-dn.net/?f=let%20%5C%3A%20x%20%3D%20a%20%5Ccos%28%CE%B8%29%20%5C%5C%20let%20%5C%3A%20y%20%3D%20a%20%5Csin%28%20%CE%B8%29)
![{x}^{2} + {y}^{2} = {(a \cosθ )}^{2} + {(a \sinθ) }^{2}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20%20%7By%7D%5E%7B2%7D%20%20%3D%20%20%7B%28a%20%5Ccos%CE%B8%20%29%7D%5E%7B2%7D%20%20%2B%20%20%7B%28a%20%5Csin%CE%B8%29%20%7D%5E%7B2%7D%20)
![{x}^{2} + {y}^{2} = {a}^{2}( {cos}^{2}θ) + {a}^{2} ({sin}^{2}θ)](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20%20%7By%7D%5E%7B2%7D%20%20%3D%20%20%7Ba%7D%5E%7B2%7D%28%20%7Bcos%7D%5E%7B2%7D%CE%B8%29%20%2B%20%20%7Ba%7D%5E%7B2%7D%20%28%7Bsin%7D%5E%7B2%7D%CE%B8%29)
Next, you have to apply Basic Trigonometric Identity :
![{sin}^{2} θ + {cos}^{2} θ = 1](https://tex.z-dn.net/?f=%20%7Bsin%7D%5E%7B2%7D%20%CE%B8%20%2B%20%20%7Bcos%7D%5E%7B2%7D%20%CE%B8%20%3D%201)
![{x}^{2} + {y}^{2} = {a}^{2} ( {cos}^{2} θ + {sin}^{2} θ)](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20%20%7By%7D%5E%7B2%7D%20%20%3D%20%20%7Ba%7D%5E%7B2%7D%20%28%20%7Bcos%7D%5E%7B2%7D%20%CE%B8%20%2B%20%20%7Bsin%7D%5E%7B2%7D%20%CE%B8%29)
![{x}^{2} + {y}^{2} = {a}^{2} (1)](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20%20%7By%7D%5E%7B2%7D%20%20%3D%20%20%7Ba%7D%5E%7B2%7D%20%281%29)
![{x}^{2} + {y}^{2} = { a}^{2}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20%20%7By%7D%5E%7B2%7D%20%20%3D%20%20%7B%20a%7D%5E%7B2%7D%20)