given that A, B and C are angle of a triangle prove that:<br /> sin B + sin C = 2cos A/2 cos B-C/2​

The deck that kenneth is building is in the shape of a parallelogram abcd the measure of angle c is one third the measure of angle b find the measure of each angle of the deck

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?