How do i get x? i’m confused on what numbers go where

x = 2√13

Step-by-step explanation:

First, we can put out a lot of equations to see if we can make a system:

x² = y² + 4², x² + z² = 13², xz = 13y, y² + 9² = z²

Substitute 4 into 1: x² = (z² - 9²) + 4²

System 2 and substitution: x² + z² = 169, x² - z² = -65

Elimination: 2x² = 104

Divide: x² = 52

Square root: x = √52 = 2√13

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.

answer: i don't understand it

step-by-step explanation: sorry