450 ....................................................................................
Answer:
-9-4e
Step-by-step explanation:
You would need to combine like terms which here would be 3e-7e which would equal -4e. Then take -19+10 and end up with -9.
Overall, -9-4e
Answer:
=
Step-by-step explanation:
This triangle is the same as a right triangle rotated around.
Pythagorean Theorem applies to this (because it's a right triangle)



x=10.39
Answer:
Inverse Function: f^-1(x) = 9/4x + 9
Step-by-step explanation:
To find the inverse function we can interchange the position of the variables x and y, and then solve for y;
y = 4/9x - 4 => x = 4/9y - 4,
x = 4/9y - 4,
4/9y = x + 4,
y = 9/4x + 9/4(4),
y = 9/4x + 9/ f^-1(x) = 9/4x + 9