Given point A is not on line m, suppose A is reflected across line m. Which of the following is true? A. AA′¯¯¯¯¯¯¯¯ is the bisector of line m.
B. Line m is the perpendicular bisector of AA′¯¯¯¯¯¯¯¯.
C. Line m is parallel to AA′¯¯¯¯¯¯¯¯.
D. A = A′

the answer is b

Step-by-step explanation

good luck

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

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1