A 13 foot ladder is leaning against the wall. If the top of the ;adder slips down the wall at a rate of 2 ft per seconds, how fast will the foot be moving away from the wall when the top is 5 feet above the ground

What situation is an example of an observational study

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1