Answer:
27.19 ft.
Step-by-step explanation:
sin 65 = x/30
sin 65(30) = x
27.189 ≈27.19
54/4 = 13.5
take the 2 whole numbers below 13.5 and the 2 whole numbers above 13.5
12 + 13 + 14 + 15 = 54
Since the radius is 12, the equation is
.. x^2 +y^2 = 144
Answer:
![\large\boxed{ax^2+ay^2-bx^2-by^2+b-a=(a-b)(x^2+y^2-1)}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Bax%5E2%2Bay%5E2-bx%5E2-by%5E2%2Bb-a%3D%28a-b%29%28x%5E2%2By%5E2-1%29%7D)
Step-by-step explanation:
![ax^2+ay^2-bx^2-by^2+b-a\\\\=(ax^2-bx^2)+(ay^2-by^2)+(b-a)\qquad\text{use the distributive property}\\\\=x^2(a-b)+y^2(a-b)-1(a-b)\\\\=(a-b)(x^2+y^2-1)](https://tex.z-dn.net/?f=ax%5E2%2Bay%5E2-bx%5E2-by%5E2%2Bb-a%5C%5C%5C%5C%3D%28ax%5E2-bx%5E2%29%2B%28ay%5E2-by%5E2%29%2B%28b-a%29%5Cqquad%5Ctext%7Buse%20the%20distributive%20property%7D%5C%5C%5C%5C%3Dx%5E2%28a-b%29%2By%5E2%28a-b%29-1%28a-b%29%5C%5C%5C%5C%3D%28a-b%29%28x%5E2%2By%5E2-1%29)