(-a + (-b)) + (-c) = -(a + b) + (-c) A:associative
B:commutative
C:distributive
D:opposite of a sum

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.

Can someone tell me if this is perpendicular? !

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.