Combine like terms
Then you’ll get -7a-2b+8c-14 which is the answer.
Answer:
Step-by-step explanation:
I would explain but then I would sound like an idiot
y=mx+ b
It's useful in following conditions:
(i) when you want to know the valency to male compounds
for example :
when H2 and O2 react in normal conditions they form H2O, amd here we needed crossmultiplication of their valencies.
(ii) To know masses while calculating mass number.
For example In case you wanna find mass of 100 molecules of H2O.
(iii) To find electronegativity (to determine type of bond formed).
For example: which kind of bond Hydrogen and Clorine will form.
Homework: (180/10)6 = 106 assignments
tests: (180/30)2= 12 tests
Number of people in the office=13
Number of office lines=66
Given that all the 6 phones started ringing at once, the number of groups of 6 people that that can answer the lines will be:
13C6
=(13!)/(6!7!)
=1,716
