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Mathematics, 18.03.2021 07:20, dbag1162
You plan to conduct a survey to estimate the percentage of adults who use email. Find the number of adults who must be surveyed if you want to be 90% confident that the sample percentage is within two percentage points of the true percentage for the population of all adults. Assume that from a previous study it is determined that 94% of adults use email. Use formula n=(z a/2)^2 * P*Q/ E^2
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Mathematics, 21.06.2019 17:00, JOEREACH
Use the expression below.â4b + 8c + 12 â 8b â 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(â2b + c + 3) b. 3(â2b + c + 3) c. 4(â2b + c + 3) d. 6(â2b + c + 3)part cwhat is the value of the expression when b = 2 and c = â3? enter your answer in the box.
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