Mathematics, 28.02.2020 19:37 weeblordd
8. A man has a collection coins made up of nickels and quarters with a total value of $6.65. If he has 5 more quarters than nickels, how many of each coin does ne
have?
9. The length of a rectangle 4 more than twice its width. If the perimeter of the
rectangle is 98 cm, find its area.
Answers: 1
Mathematics, 22.06.2019 01:10
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
Answers: 1
8. A man has a collection coins made up of nickels and quarters with a total value of $6.65. If he h...
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