Let f be an m × n matrix. then what do you know about the dimensions of matrix g in the problems below if each
expression has a value?
a. f + g
b. ff
c. gg
d. fff for some matrix hh

answer:

explanation:

true is your answer. have a nice day.

answer:

a=9

step-by-step explanation: lmk if you need a 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.