PreCalc in everyday life
Article 1: http://www.dailymail.co.uk/news/article-2518834/Passengers-tell-horror-planes-abort-landings-UK-storm.html This article showed Pre-Calculus through the determination of the plane height and speed. If they did their math right the plane wouldn’t have crashed. In Algebra 2 we learned the dreadful sin, cosine, and tangent. This particular rule that also follows through Pre-Calculus could have been used to find the right speed and landing needed to land the plane safely. Using the cosine rule, you can find the ground speed using c2=a2+b2=2abcosC . 1002=202+b2-2’20’bcos126. B2-23.5b-9600=0. Once you found the ground speed you could use the sine rule to calculate the heading that the plane should follow: sin=sin=86.7sin126. You can use math with Law of sine and cosine, in combinations with other formulas, to calculate the ground speed, landing speed, wind direction, etc.—All important and necessary information for a flight.
Article 2: http://online.wsj.com/news/articles/SB10001424127887324034804578348813425676382 This article relates to math by talking about your basic everyday water fountains. It briefly discusses how there’s an arch in the water that comes up from the sprout. The water fountain, the fountain that provides us water comes out to us as what we call mathematically parabolas. Parabolas are just another fancy term for arch. With the decrease in speed of the water flow it allows us to drink without being darted in the face by cold water in which the fountain should provide. It comes down to angle of depression and how far they set the length of the base to where it doesn’t go pass the necessary point.
Article 3: http://www.dailyherald.com/article/20121226/entlife/712269696/ This article relates to Pre-Calculus and Algebra 2 in almost every way. A class of students asked why it was possible to ride a bike, and they were fascinated that whoever invented the bike used circular wheels. Some mathematician’s got intrigued and wanted to try
Article 2: http://online.wsj.com/news/articles/SB10001424127887324034804578348813425676382 This article relates to math by talking about your basic everyday water fountains. It briefly discusses how there’s an arch in the water that comes up from the sprout. The water fountain, the fountain that provides us water comes out to us as what we call mathematically parabolas. Parabolas are just another fancy term for arch. With the decrease in speed of the water flow it allows us to drink without being darted in the face by cold water in which the fountain should provide. It comes down to angle of depression and how far they set the length of the base to where it doesn’t go pass the necessary point.
Article 3: http://www.dailyherald.com/article/20121226/entlife/712269696/ This article relates to Pre-Calculus and Algebra 2 in almost every way. A class of students asked why it was possible to ride a bike, and they were fascinated that whoever invented the bike used circular wheels. Some mathematician’s got intrigued and wanted to try