It's the sum of the three masses:

Answer:
x=12
Step-by-step explanation:
AB/FE=BC/EC
x/6= 5+5/5
x/6=10/5
x=6(2)
x=12
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Answer: b=40
Step-by-step explanation:
PEMDAS - Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction
First, we do the exponents.
5² - 4 · 6 + 11
= 25 - 4 · 6 + 11
Next, multiplication (according to PEMDAS).
= 25 - 24 + 11
Although PEMDAS says addition then do subtraction, please note that this is totally interchangeable. For the sake of this problem, subtraction will be done first.
= 25 - 24 + 11
= 1 + 11
Finally, addition.
= 12
This is your answer. Happy studying~
Answer:3.8181818181818181818181818181818
not spam i swear
Step-by-step explanation: