Explicit and Recursive Applications
At a business office, 5 employees were sick with the
flu on the one week. During the second week 8
employees had the flu. By the third week there were
13 employees sick with the flu. The office clerk
noticed that the number of employees getting sick
was growing exponentially with a growth factor of
1.6' for at least 8 weeks.
week #1 week #2 week #3
week #6
8 I 13
Write an explicit definition showing the number of sick employees each week.
) W, = 5+ 1.6
w = 5 (1 6n)
Ow=5+(12-1) 1.6
w = 5. (1.6) 2-1

Of jk j(–25, 10) k(5, –20). is y- of l, jk a 7: 3 ? a. –16 b.–11 c. –4 d.–1

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?