Suppose we wish to bisect angle ABC using a compass and straightedge. Which choice is the correct first step?
A) Place the compass point at A.
B) Place the compass point at B.
Eliminate
C) Place the straightedge along ray BC.
D) Place the straightedge along points A and B.

addition

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

answer: n word

step-by-step explanation:

what type of people are in the hood?

what steals your tv in the dark and you cant see them?

umm you say your want to . but you do know that this is the mathematics.  

o~o