Answer:
(x + 1)² + (y + 3)² = 16
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Given
x² + y² + 2x + 6y - 6 = 0
Collect the x and y terms together and add 6 to both sides
x² + 2x + y² + 6y = 6
To complete the square
add ( half the coefficient of the x/ y terms )² to both sides
x² + 2(1)x + 1 + y² + 2(3)y + 9 = 6 + 1 + 9
(x + 1)² + (y + 3)² = 16
with centre = (- 1, - 3) and r = 
= 4
Answer:
x=-6
Step-by-step explanation:
Use Substitution
so 5-2x=-4x-7
I'ma move that -4x to the other side by making it a positive
5+2x=-7
than I'ma move that 5 to the other side by making it a negative
2x=-12
to isolate the x you dived by both sides by the 2
x=-6
I doubled checked and it's -6
Answer:
Okay to help with number 3 and 4 and 5
Step-by-step explanation:
g + 15 ≤ 3
step 1. subtract 15 from both sides
g ≤ -12
x/4 ≥ -4
Step 1. multiply 4 on both sides
x ≥ -16
5. -9x > -90
Step 1. divide -9 on both side (remember to switch the inequality sign)
x < 10
It is leangth times width times hight
Answer:
Step-by-step explanation:
For x=0
For x=1
For x=2
