Answer:
it's c
Step-by-step explanation:
c is the answer becuse its showing u that ob is perpenlicular to Ac
d0nt know….
But hi!
4.2
First I did 54 divided by 3 which is 18. Then I found the square root of 18.
2×(1+10)
Step-by-Step
You are just substituting in where the parenthesis go.
But I am not entirely sure.