Which shape could not be a cross section for this cube?
A) Triangle
B) Square
C) Octagon
D) Hexagon

c

Step-by-step explanation:

you can see a triangle, square, and hexagon but you cant see an octagon

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.