A=6a^2
A=6(5.5)^2
A=181.5
Hopefully I answered correctly.
Answer:
Step-by-step explanation:
Sorry, I could do only the first three questions
Answer:
C
Step-by-step explanation:
Answer:


Step-by-step explanation:
Given


Solving (a): The mean
This is calculated as:

So, we have:



Solving (b): The standard deviation
This is calculated as:

So, we have:




Answer:
4b^2+2b (b^2 means b squared)
Step-by-step explanation: