Answer:
3
Step-by-step explanation:
3/10
0.33333333 1/3
0.375 3/8
0.4 2/5
Ok, diameter
find the distance and the midpoint
remember, the equation of the circle with center (h,k) and radius r is
(x-h)²+(y-k)²=r²
so find radius and midpoint
find diameter
find distance between the points
D=
![\sqrt{(x2-x1)^2+(y2-y1)^2}](https://tex.z-dn.net/?f=%20%5Csqrt%7B%28x2-x1%29%5E2%2B%28y2-y1%29%5E2%7D%20)
D=
![\sqrt{(5-(-3))^2+(7-1)^2}](https://tex.z-dn.net/?f=%20%5Csqrt%7B%285-%28-3%29%29%5E2%2B%287-1%29%5E2%7D%20)
D=
![\sqrt{(5+3)^2+(6)^2}](https://tex.z-dn.net/?f=%20%5Csqrt%7B%285%2B3%29%5E2%2B%286%29%5E2%7D%20)
D=
![\sqrt{(8)^2+36}](https://tex.z-dn.net/?f=%20%5Csqrt%7B%288%29%5E2%2B36%7D%20)
D=
![\sqrt{64+36}](https://tex.z-dn.net/?f=%20%5Csqrt%7B64%2B36%7D%20)
D=
![\sqrt{100}](https://tex.z-dn.net/?f=%20%5Csqrt%7B100%7D%20)
D=10
radius is 5 then
midpoint is the average of the points
(-3+5)/2 is the x value which is 1
(1+7)/2 is theh y vale which is 4
center is (1,4)
radius is 5
(x-1)²+(y-4)²=5² is da equation
The first one is infinite many solutions
The second one is (x=0) one solution
The third one is (x=3) one solution
The fourth one is no solution
The last one is no solution
Tbh I think the answer is true! hope i helped!
Answer:
7y = x + 28
Step-by-step explanation:
Given x = 7t and y = t + 4
Here t is the parameter Now to remove it express one of it in terms of the variables (like x or y)
Given x = 7t
from this we can write ![t=\frac{x}{7}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7Bx%7D%7B7%7D)
Now substitute this value in the second equation
y = t + 4
![y=\frac{x}{7}+4](https://tex.z-dn.net/?f=y%3D%5Cfrac%7Bx%7D%7B7%7D%2B4)
Therefore the parameter is eliminated.