In the figure shown, abc is a right triangle with side lengths a, b, and c, and cd is an altitude to side ab. the side lengths of triangle acd are b, h, and r, and the side lengths of triangle cbd are a, s, and h.

which proportions are true?

a) c/a = a/s and c/b = b/r

b) c/a = s/a and c/b = r/b

c) c/b = a/s and c/a = b/r

d) c/b = s/a and c/a = r/b

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

Which of the following expressions is equal to 2x^2+8

To determine the number of deer in a forest a forest ranger tags 280 and releases them back