Rationalize the denominator and simplify.

sqrt a+1 -2
—————-
sqrt a+1+2

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4