Answer:
x^2 + y^2 - 6x + 3y -13 =0
Step-by-step explanation:
we have formula when endpoints of diameter of circle are given.
(x-x1)(x-x2)+(y-y1)(y-y2)=0
put value of x1,x2 and y1 and y2.
=(x-5)(x-1) + {y-(-6)}(y-3)=0
=(x^2 -x - 5x +5) + ( y+6)(y-3)=0
=x^2 - 6x +5 + y^2 - 3y +6y - 18=0
=x^2 + y^2 - 6x + 3y -13=0
required equation..
Answer:
Graph C
Step-by-step explanation:
It is graph C because it starts at $60 (the gas) and goes up $20 every hour (the hourly payment)
Answer:
x = -2
y = 5
Step-by-step explanation:
Given two equations
1. 7x + 10y = 36
2. y = 2x + 9
Substitute 2x + 9 for y in equation 1.
We have
7x + 10y = 36
7x + 10(2x + 9) = 36
Distribute 10 into (2x + 9)
We have
7x + 10 x 2x + 10 x 9 = 36
7x + 20x + 90 = 36
27x + 90 = 36
Subtract 90 from both sides to eliminate 90 on the left side
27x + 90 - 90 = 36 - 90
27x = -54
Divide both sides by 27 to isolate x
27x/27 = -54/27
x = -2
Now substitute -2 into either equation to get y
Using equation 2, we have
y = 2x + 9
= 2 x -2 + 9
= -4 + 9
= 5
x = -2
y = 5
Check
7(-2) + 10(5) = 36
1/3 of a foot = 4 inches
(4^3)*3=
(4*4*4)*3=
(16*4)*3=
64*3=
192
