Mathematics, 21.02.2020 22:43 01222002
The city's PR manager claimed the mean score of all ninth graders in the city was 83 (because the average of 81, 96, and 72 is 83). Of course, that is incorrect. Write a sentence or two to explain why this approach is incorrect.
Answers: 3
Mathematics, 21.06.2019 19:20
Which of the following quartic functions has x = β1 and x = β2 as its only two real zeroes?
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Which statement explains the relationship between corresponding terms in the table?
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Mathematics, 22.06.2019 00:20
Submarines control how much they float or sink in the ocean by changing the volume of air and water contained in large ballast tanks. when the tanks are completely full of water, the submarine increases its overall mass and sinks down to the bottom. when the tanks are completely full of air, the submarine reduces its overall mass and floats to the surface. depending on the density of the seawater surrounding the submarine, it will pump seawater in or out of the tanks in order to achieve the same overall density as the sea water and float neutrally in the water. the volume of the submarine never changes. when the tanks are completely full of water, a submarine with a volume of 7.8\times10^3\text{ m}^37.8Γ10 3 m 3 7, point, 8, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript has a total mass of 8\times10^6\text{ kg}8Γ10 6 kg8, times, 10, start superscript, 6, end superscript, space, k, g. the density of the seawater is 10^3\text{ kg/m}^310 3 kg/m 3 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. to make that submarine float neutrally, and neither float nor sink in the ocean, what volume of water does that submarine need to subtract from its tanks?
Answers: 1
The city's PR manager claimed the mean score of all ninth graders in the city was 83 (because the av...
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