Felicia takes a sheet of paper and cuts from one corner to the opposite corner, making two triangles. If the piece of paper is 4 inches long and
7 inches wide, what is the perimeter of one of the triangles (nearest
tenth)?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

If f(x) = 5х – 2 and g(x) = 2х + 1, find (f – g)(x).

Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?