9. In the diagram below of rectangle RSTU, diagonals RT and SU intersect at O. If RT = 6x + 4 and SO = 7x - 6, what is the length of US?

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

a 90 degree rotation across the the origin followed by a reflection across the x-axis.

step-by-step explanation: