20. X-y-1-0 అనే సరళరేఖ అనే ---xy+ y + 3x + 3y-2 = 0 వక్రాన్ని ఖండించే బిందువులను మూలబిందువుకు కలిపితే వచ్చే సరళరేఖలు పరస్పరం
లంబంగా ఉంటాయని చూపండి.
Aworker samadhanam yucca and kernel Madhya konden Kandu konden ​

his week a heat wave will be hitting, and most of the country will be experiencing temperatures above average for july. due to humidity, the temperature outside can feel even warmer than it actually is. this adjusted temperature, often referred to as the “feels like” temperature is called the heat index. the chart shows the heat index, which is calculated based on temperature and relative humidity. use this chart to answer the following questions.  

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.

i think the answer is c

hope this