4^n + 1 , Where n is a natural number , will A) definitely be an odd no.

B) definitely be an even no.

C) definitely be a multiple of 5

D) be odd if n is odd and be even if n is even

could

step-by-step explanation:

u send me a picture of ur work

d

step-by-step explanation:

i used the pitagoras theoreme

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.