Where does the pythagorean identity sin^2 θ + cos^2 θ = 1 come from? how does it relate to right triangles?

Steve is scuba diving near his home in maui. at one point he is 100 feet below the surface. represent this number with a negative number. if he descends another 5 feet, what negative number will represents his.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?

Select the graph of the solution. click until the correct graph appears. |x| = 3