Which functions have removable discontinuities (holes)? check all of the boxes that apply. f(x)=x-1/x^2-1 f(x)=x^2-9/x^2+7x+12 f(x)=x^2+4x+4/x^2+2x-8 , f(x)=x+7/x^2+5x-14

a b d

Step-by-step explanation:

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

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.