Answer:
Step-by-step explanation:
Following PEMDAS:
First, simplify the exponent and the equation in the paranthases:
2^2+(10-5)+1
(2*2)+(10-5)+1
4+(10-5)+1
4+5+1
Then, Solve:
4+5+1
10
10 is your answer
Hope this helps!
Answer:
Ox=-2 and x=-8
Step-by-step explanation:
Answer:

Step-by-step explanation:
Arithmetic sequence:
In an arithmetic sequence, the difference between consecutive terms is always the same, and is called common difference.
The nth term is given by the following equation:

In which
is the first term and d is the common difference.
First term is 9 common difference is -2
This means that 
So, the nth term is given by:



Can it be a decimal? Only one I can think of is 1 X 31
Answer:

Step-by-step explanation:

A number squared also means that the number is multiplied by itself twice.
