True or false:

this is a perfect square trinomial

100x^2 −10xy + y^2

if you say true, tell me why
if you say false, tell me why as well

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?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Solve for x and select the correct answer