Question

each week sam works the same number of hours. her first week included an ortantion. the total number hours that she worked the 2nd 3rd and 4th weeks was 20 hours 28 hours and 36 hours. assume the relationship is linear. find and interpret the rate of change and interpret the initial value.

Answer 1

Which of the following is not irrational?

i) (2 - √ ) 2

ii) ( 2 + √ ) 2

iii) ( √ - √ ) √ + √ )

answer is the 3rd one

Answer 2

Take small but equal amounts of water and milk in two different but similar containers. Freeze them by putting in a refrigerator. Now melt them in the sunshine, boil them on the same stove under the same conditions, and evaporate them completely. Note their temperature and time during changing of their states. What similarities and differences you find while changing the states of both of the materials. Support your investigation results with time and temperature graph.