A fish is 12 Meters below the surface of the ocean. what is it's evelation

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year