Discover Questions

Please help me with this math problem :) If f(g(x)) = g(f(x)) = x, and g(x) = 2 + ln(x+1), find f(4).? Whats wrong with this proposition in terms of logic: "Something must be done. This is something. Therefore this must be done"? The partial pressure of the blue gas in the container represented in the picture is 240 mmHg. What is the partial pressure of the red gas? Explain what is measured by the sign of a z-score and what is measured by its numerical value.? 100 Ah battery how many hours to be backup for 100 watts load?