2.3915002041 rounded 2 decimal places

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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