Vivian starts in the northwest corner of a swimming pool and swims to the southeast corner. then she swims along the width, a distance of 48 yards, and then along the length, a distance of 20 yards. once vivian returns to her starting point, how far has she swum?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b