Mathematics, 09.11.2020 21:50 leximae2186
➢ Calculate the distance and displacement in each of the following situations. Include a direction (example: north or northwest) with your answer.
David walks 3 km north, and then turns east and walks 4 km.
Amy runs 2 miles south, then turns around and runs 3 miles north.
Derrick crawls 4 feet south, and then turns east and crawls 6 feet.
Ray runs 30 feet north, 30 feet west, and then 30 feet south.
Answers: 3
Mathematics, 21.06.2019 18:30
Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)
Answers: 1
Mathematics, 22.06.2019 00:00
Someone which statements are true? check all that apply.
Answers: 1
Mathematics, 22.06.2019 03:30
Bradley and kelly are out flying kites at a park one afternoon. a model of bradley and kelly's kites are shown below on the coordinate plane as kites brad and kely, respectively: kites adbr and kely are shown on a coordinate plane. the vertices of adbr are a is at 9, 1; d is at 1, 5; b is at 9, 9; and r i which statement is correct about the two kites? (1 point) they are similar because segment br to segment db is 1: 2 and segment ke to segment yk 1: 2. they are not similar because segment br to segment db is 1: 5 and segment ke to segment yk is 1: 2. correct! they are not similar because segment br to segment db is 1: 2 and segment ke to segment yk is 1: 5. they are similar because segment br to segment db is 1: 5 and segment ke to segment yk is 1: 5.
Answers: 1
Mathematics, 22.06.2019 04:10
You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in:
Answers: 2
➢ Calculate the distance and displacement in each of the following situations. Include a direction (...
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