First, subtract both sides by 25:
x^2 - 6x = -25
Because we're completing the square, we subtract both sides by 9:
x^2 - 6x - 9 = -34
(x - 3) = 5.831 (about)
x = 8.831
Answer:
5. 1:3
6. Joe
8. 2/3 = 8/12
9. 56/7 = 8/1
Answer:
The point slope form is ![y-y_{1} =m(x-x_{1} )](https://tex.z-dn.net/?f=y-y_%7B1%7D%20%3Dm%28x-x_%7B1%7D%20%29)
The slope(m) can be calculated using
:
![(x, y)=(4,-3)\\(x_{1} ,y_{1} )=(5,0)\\\\\frac{0-(-3)}{5-4} =\frac{0+3}{1} =\frac{3}{1} =3](https://tex.z-dn.net/?f=%28x%2C%20y%29%3D%284%2C-3%29%5C%5C%28x_%7B1%7D%20%2Cy_%7B1%7D%20%29%3D%285%2C0%29%5C%5C%5C%5C%5Cfrac%7B0-%28-3%29%7D%7B5-4%7D%20%3D%5Cfrac%7B0%2B3%7D%7B1%7D%20%3D%5Cfrac%7B3%7D%7B1%7D%20%3D3)
Using Point One, the point-slope form is determined as:
![y-(-3)=3(x-4)\\y+3=3(x-4)](https://tex.z-dn.net/?f=y-%28-3%29%3D3%28x-4%29%5C%5Cy%2B3%3D3%28x-4%29)
The y-intercept(b) can be calculated as:
![(5,0)\\y=3x+b\\0=3(5)+b\\0=15+b\\b=-15\\(0,-15)](https://tex.z-dn.net/?f=%285%2C0%29%5C%5Cy%3D3x%2Bb%5C%5C0%3D3%285%29%2Bb%5C%5C0%3D15%2Bb%5C%5Cb%3D-15%5C%5C%280%2C-15%29)
Answer:
$149.09
Step-by-step explanation:
56.75-14.10=42.65
42.65+41.50=84.15
84.15-11.03=73.12
73.12-7.25=65.87
65.87+83.22=149.09