Answer:
Is this cooking because if it is why would we need to answer that just ask another adult because this app is for home work or school work not for cooking
Answer:
YES
Step-by-step explanation:
It does
if you think about the difference between the first term of y and the first term of x it is 4. then you take the difference between the second term of y and the second term of x which is 7. Then take the difference between the third value of y and the third value for x which is 10. The difference between those differences is 3 which is constant!
Hope that helps :)
672 = (-24b)
Now you see how that's a time 24?
Well you gotta do the opposite to both side so..
672 = (-24b)
___ ____
-24 -24
-28 = b
(but the variable has to be on the left side for whatever reason, so you gotta flip it)
b = -28
Now let's check;
672 = -24(-28)
672 = 672
:) We gucci
(Now here's the steps with no interruptions)
672 = -24b
___ ___
-24 -24
-28 = b
b = -28
<span>First things first! Put the equation into standard form for a circle:
(x-H)² + (y-K)² = r² where (H, K) are the coordinates for the center of the circle and r is the radius. You can do this by completing the square for both x and y terms:
x² + y² - 12x - 2y + 12 = 0
x² + y² - 12x - 2y = -12
x² - 12x + y² - 2y = -12
To complete the square take half of the x-term and square it then add it to both sides of the equation. So take half of -12 which is -6, square it: -6² = 36 and add it to both sides.
x² - 12x + 36 + y² - 2y = -12 + 36
Do the same for y:
x² - 12x + 36 + y² -2y + 1 = -12 + 36 + 1
Now reduce each perfect square polynomial to squared form by remembering the FOIL rule for factoring:
(Ax + B)(Cx + D)
First + Outer + Inner + last
A²x² + ADx + BCx + D²
Now just work backwards and figure out what terms multiply to give you the trinomial you have. Let's start with the x :
x² - 12x + 36
Looks like 36 is perfect square of 6 and the negative sign in the middle term indicates subtract 6, so x - 6. Check it!
(x - 6)² = x² - 3x - 3x + 36 = x² - 6x + 36
Yes, it works! Now the y :
y² - 2y + 1
This looks good too since 1 is a perfect square:
(y - 1)² = y² - 1y - 1y + 1 = y² - 2y + 1
Perfect!
Now put it back into the equation:
x² - 12x + 36 + y² - 2y + 1 = -12 + 36 + 1
(x - 6)² + (y - 1)² = -12 + 36 + 1
Simplify the right:
(x - 6)² + (y - 1)² = 25
Beautiful! The equation of the circle! The center is (6,1) with radius 5. Now we can attack the parts in the question.
(a) First part asks us to find point B, knowing point A is (3,-3) and that AB is a diameter of the circle. Since we know the coordinates of the center and the fact that a diameter is just a line that goes through the center, we have 3 points on the line: A, B, and the center. We can just realize that the point B is equidistant and exactly opposite the point A with respect to the center. So let's find the difference between point A and the center, and move that distance to get to B:
center - A = (1 - -3) / (6 - 3) = (1 + 3) / (6 - 3) = 4 / 3 </span>
Answer:
6/25
Step-by-step explanation:
