Answer:
You are right
Step-by-step explanation:
The sum of the first n natural numbers and 0=
n*(n+1)/2
Answer:
Wat is the question?
Step-by-step explanation:
Answer:
99
Step-by-step explanation:
99 x 33 x 3 can be simplified to 99 x 99. If you square root this you will end up with 99
Answer:



Step-by-step explanation:
Given

Required
Select 3 equivalent expressions

Express 9 as 3^2
--- This is one equivalent expression
Take
as difference of two squares
-- This is another equivalent expression:
Solving further:
becomes
-- This is another equivalent expression:
Hence, the equivalent expressions are:


