I have a trig problem :-) Find the six sixth roots of -64.
Note that z= -64 is in rectangular form and in polar form it is z=64(cos pi + isin pi).
Write your roots in both polar and rectangular form.

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Solve the formula ax+ by = c for x.