Assignment:
Some types of worms have a remarkable ability to live without moisture. The following table from one study shows the number of worms W surviving after x days without moisture.
x (days) 0 20 40 80 120 160
W (worms) 50 48 45 36 20 3
(a) Use the equation W= -0.0014x^2 - 0.076x + 50 to find W for each x-value in the table.
(b) Discuss how well this equation approximates the data.
(c) Use this equation to estimate the number of worms on day 60 and on day 180. Which answer is most accurate? Explain.
Provide complete and step by step solution for the question and show calculations and use formulas.