Abulletin board is 2.4m long and 1.2m high. it is covered in a checkerboard pattern with 288 green and white squares of the same size. find the side of each square in centimetres.

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Can someone me out here number 4 plz