Answer:
Step-by-step explanation:
Notice that KL = LM and PQ = QR since OL and OQ are perpendicular to both KM and PR.
It follows that QR = (1/2) PR = 20 cm. We also know that MR = 21.
Now in order to solve the problem we just need OQ=OL
Therefore the perimeter of the pentagon is
Both the equation and its inverse are functions.
In order to tell this, we first need to look at the inverse of the function. You can find the inverse of any function by switching the f(x) value and the x value. Then solve for the new f(x) value. The result will be your inverse function. Below is the step-by-step process for solving this one.
f(x) = 3x^2 + 5 ----> Switch the f(x) and x values
x = 3f(x)^2 + 5 ----> Subtract 5 from both sides
x - 5 = 3f(x)^2 ----> Divide both sides by 3
= f(x)^2 ----> Take the square root of both sides.
= f(x) ----> Change the order for formatting purposes.
f(x) =
Now you have the inverse function. You'll notice with both cases, there is only one output for each input. No matter what we put in for x in both cases, there will be only one f(x) value that comes out. This is the definition of a function and thus proves both the original and new inverse are both functions.
