<em>CA </em>⁻¹ is undefined because there are more columns in <em>A </em>⁻¹ than there are rows in <em>C</em>.
Answer:
5
Step-by-step explanation:
The mean represents an average of all the numbers, so we have 
. Although that may seem confusing, it's actually pretty easy.
We have a total of five numbers, which are 1, 6, 2, 7, and 9.
We add these numbers up to find the sum, so 1 + 6 + 2 + 7 + 9 = 25
So our final answer will be 
which can be simplified to 5.
Answer:
3
Step-by-step explanation: There are 3 terms there
It is a equilateral
Equilateral triangles are triangles that have measurements of the same lengths on all sides
Answer:
yes because its closer to not being negitibve
Step-by-step explanation:
