Decompose a trapezoid into a rectangle and two right angles. What is the area of the trapezoid?

What is sin 7x/4 ? i need on this urgent trig

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 i need !

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).