You are interested in buying a gift that is shaped like a cube for your friend. you

have two different sizes to choose from. one has a side length(s) of l yard and the

other is 1.5 yards in length. you only have 7 square yards of wrapping paper(a). so

vou need to make sure the size of the cube can be wrapped with that amount of

paper. the side length of the cube can be modeled by the equations =

part a: is there enough wrapping paper to wrap either cube

part b: how much wrapping paper would you need to wrap both cubes

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