(3^x-2)/9^x=1/3^x-2/9^x which converges by thereom it converges to 10/72=5/36 id show work if i could but take my word, if u cant solve it try working out a few partial sums
The cross-section of a square pyramid will be a square. The section above the cross-section taken will basically be a similar but smaller square pyramid. D is the correct answer.
