Vaporizing water The amount of heat H (in joules) required to convert one gram of water into vapor is linearly related to
the temperature T (in °C) of the atmosphere. At 10°C this
conversion requires 2480 joules, and each increase in temp-
erature of 15°C lowers the amount of heat needed by
40 joules. Express H in terms of T.

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Find dy/dx using implicit differentiation ln(20+e^xy)=y