Mathematics, 16.11.2020 20:10 jade137
Logarithms on Shaky GroundThe Richter scale was once the most commonscale used for measuring the magnitude of earthquakes. The Richter magnitude of an earthquake is given by the equation =−, where Iis the intensityof the earthquake measured by the amplitude of a seismograph reading taken 100 kilometers from the earthquake’s epicenter. The intensities of earthquakesvary greatly, from 0 in some cases to 800,000,000 or more in other cases, which is why a logarithmic scale is oftenused to measure their magnitudes.
Part A) One of the strongest earthquakes ever recorded had a magnitude of 8.9 on the Richter Scale. What wasthe intensityof this earthquake? What would be the magnitude of an earthquake four times as weakasthis one?How many times as intensewas this earthquake as the magnitude 2 earthquake that struck central New Jersey in 2012?
Part B) Suppose a given earthquake is twice as intenseas another earthquake. Determine the difference in magnitude betweenthem.
Answers: 3
Mathematics, 21.06.2019 16:20
Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?
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Mathematics, 21.06.2019 18:30
Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.
Answers: 1
Mathematics, 21.06.2019 19:00
The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean
Answers: 3
Logarithms on Shaky GroundThe Richter scale was once the most commonscale used for measuring the mag...
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