Mathematics, 11.04.2020 23:31 jasiyous21
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate
only wants a 1.5% margin of error at a 95% confidence level, what size of sample is needed?
Answers: 1
Mathematics, 21.06.2019 18:50
The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
Answers: 3
Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0
Answers: 2
Mathematics, 21.06.2019 21:30
The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet
Answers: 3
Mathematics, 21.06.2019 22:30
If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air
Answers: 2
A political candidate has asked you to conduct a poll to determine what percentage of people support...
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