[填空题]
A new class of antibioti: yg) 6gc8bqttcs is studied in the medical research center. Anti;c x5ym4qvp l ,rz qq29w60ncfbiotics are applied to y0f4c,5 zw96xm qlqrqpv;2c n a pure culture of bacteria. The number of bacteria, N, present in the culture t hours after the start of the experiment are recorded. The results are shown in the table below.
1.Complete the third row of the table above.
2.Draw a scatter diagram of logN versus t, scaling the axes if needed.
3.State the type of model that best fits the data displayed on your scatter
diagram from part (b).
A researcher in the center claims that the number of bacteria, N, left in the culture afterafter applying antibiotics can be modelled by an exponential function of the form N(t)=a×bt, where a and b are positive constants.
4.Explain why the researcher is correct.
5.Find the value of a and the value of b. a ≈ b ≈
