Diana works in a building that is 130 feet tall. She is
outside looking up at the building at an angle of 37 from
her feet to the top of the building
If Diana walks forward and her angle looking to the top
of the building changes to 40°, how much closer is she
to the building? Round the answer to the nearest tenth

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?