Answer:
Step-by-step explanation:
a^2 - b^2 factors into (a + b)(a - b)
So now you have
(a + b)(a - b)
========== = 12
(a + b)
You are given that a <> b
So a + b cancels with (a + b) on the top.
a - b = 12
Answer:
Non Proportional
Step-by-step explanation:
Make a proportion:
For example say you want to test out how many bottles of water you can buy for $10
Proportion:
4 - 6
10 - ?
Solve: 10×6÷4=15
So technically, you could only get 15 bottles for $10. Therefore, this is a non proportional problem.
Answer:
yes
Step-by-step explanation:
start by solving for the missing value. all angles of a triangle should add up to 180. Subtract 31 adn 106 from 180 from the left side, you will get 43. Now do the same to the other side. 180 subtracted by 31 and 43 make 106. Thus, making the triangles the same. hope this helps
480 aproxmately if you round the numbers then add them up