4. What is the value of the expression 72 + (33 + 12) 23 a. 3 b. 8 C. 9 d. 11​

y + 11 = (1/4)(x + 16)

step-by-step explanation:

a

step-by-step explanation:

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.