You need to invert each operation so first start by subtracting 320 from each side that leaves 2x=120 then divide each side by 2 to get x by itself leaving the answer as x=60
A circle is a set of points in a plane equidistant
from a fixed point. It has a general formula of x² + y² = r². This is if the
center is at the origin. However, if the center at point h and k, the
equation becomes (x-h)² + (y-k)² = r².<span>
We write the given equation in the
form (x-h)² + (y-k)² = r² by completing the square.
</span>
<span>x</span>²<span> + y</span>²<span> + 10x – 6y + 18 = 0</span>
<span>
(x² + 10x + 25 )+ (y² - 6y + 9) = −18 + 25 + 9 = 16
(x + 5)² + (y + 3)² = (4)²
Therefore,
center = (-5, -5)
radius = 4</span>
Answer:yes
Step-by-step explanation:
Answer:
x= 10
Step-by-step explanation:
A triangle always sums up to 180 degrees. (Remember this)
So, tha equation would be: 73+(4x-1)+(6x+8)= 180.
Step 1- Add common variables.
(4x+6x)+73+8-1= 180
10x+73+8-1= 180
Step 2- Add to simplify.
10x+(73+8-1)= 180
10x+80= 180
Step 3- Subtract 80 to both sides.
10x+80= 180
-80 -80
10x= 100
Step 4- Divide both sides by 10.
<u>10x</u>= <u>100</u>
10 10
x= 10