NEED HELP!

what makes this equation true ?

4 = 36 ÷

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte