Name the algebraic property demonstrated in the example below.
x • y • z = y • x • z

distributive property

transitive property

associative property of multiplication

commutative property of multiplication

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.