Aboy swims downstream 0.9 miles in the same amount of time that he can swim 0.6 miles upstream. if the rate of the current is 1.5 mph, how fast can he swim in still water?

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

Is the square root of 4 plus the square root of 16 rational?