Answer:idk
Step-by-step explanation:
Answer:
The curve is a circle of radius 9 centered at the point (0,9) and the equation is
Step-by-step explanation:
Proceed as follows:
Take . Then
Multiply both side by . Then
Use the following substitution . Then
By cancelling out x on both sides we get the following equation
or
Recall that given a expression of the form we can complete the square by adding an substracting the amount . So, we get . In our case, we will complete the square for y, then
. Then
or
.
Recall that the equation of a circle is given by where (h,k) is the center of the circle and r is the radius. In our case we have h=0, k = 9 and r = 9. So it is a circle of radius 9 centered at the point (0,9)
You would multiply 4 on both sides
5x=2
then you would divide 5 on both sides
x=2/5
Answer:
16x -12y = 4
15x +12y = 27
Step-by-step explanation:
4x-3y = 1
5x+4y=9
Multiply the first equation by 4
16x -12y = 4
Multiply the second equation by 3
15x +12y = 27