Paul wants to add the numbers (- 5.1) + 6.5. he also is adding 9 + (- 7). paul stated, "i know that both sums are negative, because whenever i add a negative number and a positive number, the sum is always negative." is paul's reasoning correct or incorrect? explain your answer in complete sentences in the box.

cant open file sorry!

step-by-step explanation:

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

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