A Glass tumbler containing hot water is kept in the freeze compartment of a refrigerator. if you could measure the temperature of the content of the tumbler. Which graph would correctly represent the change in the temperature as a function of time?
Answers
Answer:
Rounding is used all the time to make life easier. It gives you a rough idea what the answer should be, an estimate that is easy to work out.
A real life example of using rounding is when people go shopping. A lot of people use the strategy of rounding to quickly get an idea of how much they have spent. Instead of adding £3.99 and £2.99, it is easy to round them both and add £4 and £3 so you know how much to give to the shop keeper.
When working with maths all the time, rounding is used to estimate the answer to a problem and then once you do it properly you already know where the answer should be around.
Answer:
If you could measure the temperature of the content of the tumbler, which of the following graphs would correctly represent the change in its temperature as a function of time? Answer: The water will cool initially till it reaches 0°C, the freezing point