The camera shop sells two popular models of digital slr cameras (camera a price: 200, camera a price: 300). the sales of these products are not independent of each other, but rather if the price of one increase, the sales of the other will increase. in economics, these two camera models are called substitutable products. the store wishes to establish a pricing policy to maximize revenue from these products. a study of price and sales data shows the following relationships between the quantity sold (n) and prices (p) of each model: na 195-0.5pa +0.25ps nb # 301 + 0.07pa-0.5pb construct a model for the total revenue and implement it on a spreadsheet. develop two-way data table to estimate the optimal prices for each product in order to maximize the total revenue. vary each price from $250 to $500 in increments of $10. max profit occurs at camera a price of max profit occurs at camera b price of

news channels,news papers,and the internet

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

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