1.how !any subset does set C = {a, b,c}have? a.0. C.-
b.3. d.9
2.which symbol is used of R = {t, I,n} except?
a. u. c-
b. n. d.ø

pls I need answers TnT

1.a.0. C.- 2. a.u.. c-

Step-by-step explanation:

maybe that's can help to you

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.