Recent content by Kathy Chan

  1. K

    Find the average mean of a function

    It's alright and I am sorry if I posted in the wrong section. Anyway, how do I find the average mean from looking at the graph? I thing (probably wrong) that after pluging the equation into TI83plus, I will push "2nd" and "trace" and "7". In this problem, is the lower limit 0 and upper 365? Or...
  2. K

    Find the average mean of a function

    Thank you for helping, but I do not get what you are talking about. This is my summer work for calculus and I'm not in calculus yet, so can you please make it simple. What are a, b, d, and x in this problem and what is the symbol that looks like the letter "f" means? Thank you so much. I...
  3. K

    Compound contains only carbon, hydrogen, nitrogen, and oxygen.

    Homework Statement A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of 0.157 g of the compound produced 0.213 g CO2 and 0.0310 g H2O. In another experiment, it is found that 0.103 g of the compound produces 0.0230 g NH3. What is the empirical formula of the compound...
  4. K

    Find the average mean of a function

    Homework Statement The mean daily temperature in degrees Fahrenheit of a certain city on the xth day of the year is approximated by the function f(x)= 64 + 27 cos[(2π/365) (x+145)] (note: π = pie) Part d) Find the average mean daily temperature Homework Equations The Attempt at a...
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