Answer:50/500×100=10%
Therefore, 10% of 500 is 50.
Hope this answer helps you...
Step-by-step explanation:
Its b because to simplify radical you multiply by in this instance sqrt of 5 on the denominator and numerator
Answer:
M=v^2r / 2G
Step-by-step explanation:
Open the file, it is solved for you, your welcome.
Answer:

Step-by-step explanation:
When adding rational numbers, if the denominator is the same you simply keep the denominator (bottom of fraction) as it is and apply the operation given to the numerator ( top of fraction )
So we have 
==> remove parenthesis and apply signs

==> simplify numerator by combining like terms

and we are done!
Note:
like terms are terms with the same variable and exponent
An example of like terms are 6x^7 and 3x^7 as they have x as a variable and a power of 7
The like terms being combined here were (6x² and 4x²) and (5 and -2)
algebra, is a type of math.