Answer:
Distribute, subtract, additon,divide
Step-by-step explanation:
4(x-7)=2x-6 to get the second problem you distribute the 4 to the 7 and x
4x-28=2x-6 subtract the 2x from 4x
2x-28=-6 then u add the 28 to the negative 6
2x=22 divide
x=11
1. C
2. 3, because I used a proportion table
Answer: 13
Step-by-step explanation:
If you remember the quadratic equation formula;

You can easily extract what is under the root to find the discriminant.

a = 3
b = 7
c = 3

Answer:
(x - 4)² + (y + 6)² = 5²
Step-by-step explanation:
rearrange the general equation as follows
collect the terms in x and y together and place the constant on the right side
x² - 8x + y² + 12y = - 27
add (half the coefficient of the x/y term)² to both sides
x² + 2(- 4)x + y² + 2(6)y = - 27
(x - 4)² + 16 + (y + 6)² + 36 = - 27 + 16 + 36
(x - 4)² + (y + 6)² = 25
(x - 4)² + (y + 6)² = 5² ← in standard form