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1) Temperature below zero degrees is denoted by a negative number. 2) In business, profit is shown as positive and loss as negative
Jeopardy.
Whenever you have two opposites, you can use positive number for one, and negative numbers for the other. For example: * Having money might be positive, owing money might be negative (owing money is worse than just having nothing). * Getting money might be a positive change; spending money (or otherwise losing it), a negative change. * Places above sea level might be assigned a positive altitude; places below sea level, a negative altitude. * If latitudes north of the equator are defined as positive, then latitudes south of the equator would be negative. Or the other way round.
Math class, thermometers.
No. Inventory and engineering work need negative numbers to measure. Also, how can we measure the temperature if it's freezing cold without negative numbers? Integers are needed for calculations and measurements in this world.