Interval notation(-infinitive, -4)
Answer:
Step-by-step explanation:
Alright, lets get started.
We have given two points that are end point of diameter.
So, the center point will be :
x co-ordinate :![\frac{-8-2}{2}=-5](https://tex.z-dn.net/?f=%5Cfrac%7B-8-2%7D%7B2%7D%3D-5)
y co-ordinate : ![\frac{2+6}{2}=4](https://tex.z-dn.net/?f=%5Cfrac%7B2%2B6%7D%7B2%7D%3D4)
Hence the center is : (-5,4)
Now the distance between these two end points :
![d=\sqrt{(6-2)^2+(-2+8)^2}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B%286-2%29%5E2%2B%28-2%2B8%29%5E2%7D)
![d=\sqrt{16+36}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B16%2B36%7D)
![d=\sqrt{52}](https://tex.z-dn.net/?f=d%3D%5Csqrt%7B52%7D)
So radius will be half of this diameter.
![r=\frac{\sqrt{52} }{2}](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B%5Csqrt%7B52%7D%20%7D%7B2%7D)
Plugging these values in standard equation of circle
![(x-x_{1} )^2+(y-y_{1} )^2=r^2](https://tex.z-dn.net/?f=%28x-x_%7B1%7D%20%29%5E2%2B%28y-y_%7B1%7D%20%29%5E2%3Dr%5E2)
![(x+5)^2+(y-4)^2=\frac{52}{4}](https://tex.z-dn.net/?f=%28x%2B5%29%5E2%2B%28y-4%29%5E2%3D%5Cfrac%7B52%7D%7B4%7D)
.................................. This is the answer
Hope it will help :)
No.
4 meters is 400 centimeters, so is smaller than 450 centimeters.
Answer:
$50.40
Step-by-step explanation:
The garden has an area of ...
(15 ft)(12 ft) = 180 ft²
Amy wants to cover 1/4 of that with flowers, so the area devoted to flowers is ...
(1/4)(180 ft²) = 45 ft²
The cost for each square foot is $1.12, so the cost of the flowers will be ...
($1.12/ft²) × 45 ft² = $50.40 . . . . cost to cover 1/4 of the garden with flowers
B is the correct answer because they are similar shaped but not same size