F(n) = 93 + 4(n − 1)
Complete the recursive formula of f(n).
f(1) =
f(n) = f(n-1)+

step-by-step explanation:

you can't solve x because it is 2 linear equation and you only have one equation

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.