Answer:
The inverse of x² +1 is:

Step-by-step explanation:
Given
y = x² + 1, x>0
We know that A function g is the inverse of a function f if for y = f(x), x = g(y)
y = x² +1
Replace x with y
x = y² + 1
solve for y
y² = x - 1
Taking square root

Thus, the inverse of x² +1 is:

Answer:

Step-by-step explanation:
we have

Solve for u
That means-------> isolate the variable u
step 1
Subtract
both sides

step 2
Divide by
both sides

Answer:
x=2
Step-by-step explanation:
Hi there!
Whenever we're solving an algebraic equation, our goal is always to isolate the variable, which in this case is x. We would do this by performing inverse operations on both sides of the equal sign to cancel values out.

Combine like terms on both sides of the equal sign

Add 2x to both sides to cancel out -2x (addition is the inverse of subtraction)

Add 9 to both sides to cancel out -9 and isolate 11x (addition is the inverse of subtraction)

Divide both sides by 11 to isolate x (division is the inverse of multiplication)
Therefore, x=2.
I hope this helps!
Answer:
the area of this triangle is 5