A submarine was 200 feet below sea level. It rose to the surface and then dove again to four times its initial depth. The submarine then descended another 300 feet. What was the sub's final depth? Steps: 1. Write an expression to model the situation. 2. Evaluate the expression.

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Im literally having a mental breakdown

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*