Answer:
Step-by-step explanation:
i think you are talking about the diameter of the circle.
equation of the circle is
(x-1)(x+3)+(y-8)(y-2)=0
x^{2}-x+3x-3+y^{2}-8y-2y+16=0
or x^{2}+y^{2}+2x-10y+13=0
Answer:
40,320.
Step-by-step explanation:
We are asked to find the number of ways in which 8 books could be arranged on a shelf.
The 1st could be arranged in 8 ways. Since one place is filled, so 2nd book could be arranged in 7 ways.
Similarly, the 3rd book could be arranged in 6 ways as first two places are already taken. This process will go on.
So the 8 books can be arranged in 

Therefore, 8 books could be arranged in 40,320 ways.
Answer:
The two ordered pairs you can use is (4, 3) and (8, 4). You can plot these and draw a straight line through these.
Step-by-step explanation:
In order to find the graph of the follow, first solve for y.
-8 + x = 4y - 16
-4y - 8 + x = -16
-4y -8 = -x - 16
-4y = -x - 8
y = 1/4x + 2
Now that we have this, we can find two points by choosing any two x's and solving for the y. For this case, we'll use 4 and 8.
y = 1/4x + 2
y = 1/4(4) + 2
y = 1 + 2
y = 3
So the first ordered pair is (4,3)
y = 1/4x + 2
y = 1/4(8) + 2
y = 2 + 2
y = 4
So the second would be (8. 4)
We’ll use probability to answer this question.
Probability: Number of even numbers / All numbers added together.
Odd numbers: 1,3,7
Even numbers: 4
All numbers added together (amount of numbers not the numbers itself!) = 4
Amount of even numbers = 1
Probability of getting an even number is 1/4
Answer: Yes she is correct, the probability of getting an even number is 1/4.