Answer:
(x-4) ^2 + (y+1)^2 = 81
Step-by-step explanation:
The equation of a circle is given by
(x-h) ^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius
(x-4) ^2 + (y--1)^2 = 9^2
(x-4) ^2 + (y+1)^2 = 81
785,000
Or
780,000
Either im pretty sure should work.
Answer:
25 units
Step-by-step explanation:
distance = square root (-8,15)^2 (17,15)^2
Answer:
I cant answer it because you cant copy it it doesnt allow me
Answer:
27 chickens
Step-by-step explanation:
A chicken farmer also has cows for a total of 30 animals
Both animals have a total of 66 legs
Let a represent the number of chicken
Let b represent the number of cows
a + b= 30........equation 1
Since a chicken has only two legs and a cow has four leg then, the expression can be represented as
2a + 4b= 66........equation 2
From equation 1
a + b= 30
a = 30-b
Substitute 30-b for a in equation 2
2a + 4b= 66
2(30-b) + 4b= 66
60 - 2b + 4b= 66
60 + 2b= 66
2b= 66-60
2b= 6
b= 6/2
b= 3
Substitute 3 for b in equation 1
a + b = 30
a + 3=30
a= 30-3
a= 27
Hence the farmer has 27 chickens
