Simplify the expression 11xy^-1z^o/v^-3

1. are the triangles similar and if so why? what is the value of x? show your work.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv