The average weight of the largest fish, the whale shark is 50,000 poumds. how many tons is this

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

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false