• Complete los siguientes intervalos de manera analítica. A. (7;19) = { ∈ ℝ/ } b. [1;−9] = { ∈ ℝ/ } c. [−10;13) = { ∈ ℝ/ } d. (−15; −9] = { ∈ ℝ / }

my answer got deleted but it's a

step-by-step explanation:

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6