Exploratory challenge 1/exercises 1–9
1. each person in the group should randomly select a sam...
Mathematics, 08.01.2020 23:31 sierravick123owr441
Exploratory challenge 1/exercises 1–9
1. each person in the group should randomly select a sample of 20 beans from the container by carefully mixing all the beans and then selecting one bean and recording its color.
replace the bean, mix the bag, and continue to select one bean at a time until 20 beans have been selected. be sure to replace each bean and mix the bag before selecting the next bean.
count the number of black beans in your sample of 20.
Answers: 1
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Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
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