Answer:
the percent of Damon's earnings spent on electricity is20 percent
Answer:
3 factors ; 18 total conditions
Step-by-step explanation:
The study focuses on the 3 factirs which impacts life satisfaction. Thses factors are : Smoking ; Drinking and Partying and they constitute the 3 different factor variables in the study.
For each factor variable, each has a number of different conditions ;
For smoking : 2 conditions (smoking and not smoking)
Drinking : 3 conditions (no alcohol, 1 / day ; several per day)
Partying : 3 conditions (no partying, 1 hour of partying / day, 2 hours of partying / day)
Total number of conditions :
(2 * 3 * 3) = 18 conditions
1) (m-n)(m+n)
= m^2 +mn-nm-n^2
= m^2-n^2
2) (z-3)(z+3)
= z^2+3z-3z-9
= z^2-9
No one knows how many numbers there are of pi. This is because pi goes on FOREVER and EVER. It NEVER stops it is a never ending number. So, when working in math we usually round it down to 3.14. When ever solving for pi the equal sign is always like ≈ because this means equal to since we don't know the really amount of numbers in pi.
Hope I helped ya!!