Partition CD into a 2 to 1 ratio. 1. The coordinates of Care
2. The coordinates of Dare
3. The rise from C to D is
units.
4. The run from C to D is
units.
5. With a 2 to 1 ratio, move
of the rise
and
of the run to get to the point of partition.
6. Add
to the x-coordinate of Cand
1
to the y-coordinate of C to get to the point of partition.
7. The coordinates of the point of partition are
8. Plot the point of partition and label it X.

-1/2 +2

step-by-step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

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