Anumber to the 12th power divided by the same number to the 9th power equals 125. what is the number?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.