For which equation is x = 5 a solution? A. x/5 = 5

B. 5x = 5

C. 5 + 0 = x

D. 5 + x = 15

c. 5+0=5

Step-by-step explanation:

Step-by-step explanation:

C. 5 + 0 = x

5 = x

x = 5

A. x/5 = 5

x = 5×5

= 25

B. 5x = 5

x = 5/5

= 1

D. 5 + x = 15

x + 5 = 15

x = 15 - 5

= 10

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)