Solve the equation for all x for 0

What is the area of triangle abc if a = 8, b = 11, and c = 15?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

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?