Converse of the pythagorean theorem

In the geometric progression –3, 12, −48… what term is 3,072?

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?

If g^-1(x) is the inverse of g (x) which statement must be true