HEL 1. How can you prove that a line parallel to one side of a triangle divides the other 2 sides proportionally?

2. In an isosceles triangle, how do you prove the base angles are congruent?

Select all the correct statements. the amount in dollars an electrician charges in terms of the number of hours worked is represented by the function y = 22x + 42. from the function, identify all the phrases that hold true for the situation. the electrician charges an initial fee of $22 the y-variable represents the number of hours the electrician charges an initial fee of $42 the electrician charges $22 for every hour worked the x-variable represents the electricians charges in dollars the electrician charges $42 for every hour worked

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Interpret the following expression (5y^2-7)^3/(2y)^2