Question

Question 3, pls

An environmental engineer has obtained a bacteria culture from a municipal water sample and allowed the bacteria to grow. (a) Show the resulting data and trendline, with equation and R2 value, on the appropriate graph type (xy scatter, semilog, or log-log) to make the data appear linear. (b) Assume the value of "m" in the resulting model is the growth constant. Use the trend-line determined to find the value and units of the growth constant for this bacteria. A growing field of inquiry that poses both great promise and great risk for humans is nano-technology, the construction of extremely small machines. Over the past couple of decades, the size that a working gear can be made has consistently gotten smaller. The table shows milestones along this path. (a) Show the resulting data and trendline, with equation and R^2 value, on the appropriate graph type (xy scatter, semilog, or log-log) to make the data appear linear.

Answer 1

Time (t) [r Concentration (C) [ppm] 0.5 4.2 32.5 6 107.5 7 170.6 346 10 489.8 600 4 500 y 51.307x - 121.41 R2 0.8654 400 300 200 100 0 2 6 10 12 -100

Graph is shown above. R^2 value is 0.8654.

The equation of the line is 51.307X -121.41.

Equation of a line is Y=mx+c. From both these equations value of m can be deduced to be 51.307