Wren

The pH of an acid solution is 5.90. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.10 M. What I have done: pH = 5.9 a = 10^-5.9 = 1.2589 * 10^-6 Ka = [H+][A-]/[HA] Ka = (1.2589*10^-6)^2/(.01-1.2589) I got -1.26903013E-12, bu...

In a game that uses a dice with 6 sides numbered 1 – 6, you lose twice the die number if the die number is even and win four times the die number if the die number is odd. Find the expected value for the game.

Explain why a polynomial function with an odd degree must have at least one real zero

g(x) = x⁴ + 3x³ + 7x² – 6x – 13

He mows 6 lawns in one hour so you have to divide the number of lawns he mows in total by the number he can mow in one hour. Hopefully this helps. 21 / 6 = 3.5 hours

The answer is the number 6.