Why does the problem equal 1/y^2+9?
after multiplying the second fraction by -1 to make the denominators equal, then adding, and then simplified the y^2 on the top and the y^4 on the bottom you get 1/y^2-81. how does the 81 turn into a 9? and once it is a nine, why don't you simplify it to (y-3)(y+3)?

Abe is a triangle. can you use the sss postulate or the sas postulate to prove triangle abc = triangle aed? by sss only neither apply both apply by sas only

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never