If function and inverse be

Both will seem to be opposite and similar .
Look at the first one
It is showing like 1 is function and other one is its inverse(Attachment )
Hence 1st one is the answer
B.) 81
sq rt of x= 12-3
sq rt of x=9
take the ^2 of both sides to get rid of the sq root
x^2= (9)^2
=81
The answer to the equation is 12.
Answer:
They performed the same, with 80% for both of their marks.
Step-by-step explanation:
Rashmi's mark in percentage : (480/600) x 100 = 80%
Rajan's Mark in percentage : (560/700) x 100 = 80%
To find anyone's marks in percentage, you can use :
(marks scored/full marks) x 100.