John (whos line of sight is 6 ft above horizontal is trying to estimate the height of a tall oak tree. he first measures the angle of elevation from where he is standing as 35 degree > he walks 30 feets closer to the tree and find s that the angle of elevation has increased by 12 degree .estimate the height of the tree.

it should be briana that has it to me

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )