31% of 40 is 12.4 exactly
Step-by-step explanation:
so for this one u do

231 the times it by 2 for the both sides
231×2=462 cm2
hope this make sense :)
Answer:
or
Step-by-step explanation:
The given quadratic equation is

Group the constant terms on the right hand side.


Divide through by 5.

Add the square of half the coefficient of x., which is
to both sides of the equation.

The left hand side is now a perfect square.

Take the square root of both sides;



or 
or 
or 
Answer:
The domain of f–1(x) is all real numbers and the range is all real numbers greater than 0.
Step-by-step explanation:
Answer:587,073
Step-by-step explanation: