Derive a recurrence for the number p(n) of ways to parenthesizing an expression with n atoms. compute the optimal parenthesis and optimal cost to multiply a l 10x20 b i 20x5 . l 5x40 d | 40x10.

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Is this correct if not can u correct me

Salt in oceans comes from and of rocks