Answer:
Step-by-step explanation:
By definition a diameter goes through the center of the circle. So if we find the midpoint of the diameter, we will have the h and k of the center. Then we will use one of the points ON the circle as x and y and solve for r. Here goes:
to get a midpoint/center of (0, -9).
The standard form of a circle is
Filling in with h, k, x, and y:
which simplifies to
so
Now we can write the equation of the circle:
The best choice would be the option 3cm
Answer:
6x-6
Step-by-step explanation:
(2x+6)+(4x-12)=2x+6+4x-12
=6x-6
The best way to avoid these charges is to pay off the balance on time. You will often get a grace period of around 21 days after receiving the bill in which to do this. If you just pay off the minimum you will be incurring more and more interest and it will take you a long time to pay off the debt.
Answer:
x = 0
Step-by-step explanation:
Step 1: Write equation
3x - x + 4 = 4(2x + 1)
Step 2: Solve for <em>x</em>
- Distribute: 3x - x + 4 = 8x + 4
- Combine like terms: 2x + 4 = 8x + 4
- Subtract 2x on both sides: 4 = 6x + 4
- Subtract 4 on both sides: 0 = 6x
- Divide both sides by 6: x = 0
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
3(0) - 0 + 4 = 4(2(0) + 1)
4 = 4(1)
4 = 4
