Answer:
The center is at (3, -4), and the radius is 9.
Step-by-step explanation:
x² + y² − 6x = 56 − 8y
Move x and y terms to one side.
x² − 6x + y² + 8y = 56
Complete the squares.
x² − 6x + 9 + y² + 8y + 16 = 56 + 9 + 16
(x − 3)² + (y + 4)² = 81
The center is at (3, -4), and the radius is 9.
Answer:b
Step-by-step explanation:
Answer:
2125
Step-by-step explanation:
CP= x
MP= x+25%= 1.25x
SP= MP-15%= 1.25x*0.85= 1.0625x
SP- CP= 125
- 1.0625x-x= 125
- 0.0625x=125
- x= 125/0.0625
- x= 2000
SP= 2000+125= 2125
------------
Cost price= 2000
Marked price= 2500
Selling price= 2125
Answer:
<h2>
8(4 + n) = 112</h2>
Step-by-step explanation:
Let's start by reading the problem since it maybe is a bit confusing at first.
The product of 8
Now we know that it starts with 8 multiplied by another number. We do not know that number yet, so let's put 8 * () and fill in the parentheses later.
So far, our equation is:
8()
.. And the sum of 4 and a number
So, 4 + n
We can enter that into our equation
8(4+n)
The next line says "..Is 112"
So, the solution to our equation is 112
Our equation becomes:
8(4+n)=112
I think its b because a coefficient is a number that is placed in front of a variable and the 4 is just a constant
