Mathematics, 13.03.2020 01:57 jaylon78
College professor never finishes his lecture before the end of the hour and always finishes his lectures within 2 min after the hour. Let X = the time that elapses between the end of the hour and the end of the lecture and suppose the pdf of X is as follows. f(x) = kx^2 0 ? x ? 20 otherwisea) Find the value of k. (Enter your answer to three decimal places.).375b)What is the probability that the lecture ends within 1 min of the end of the hour? (Enter your answer to three decimal places.) .125c) What is the probability that the lecture continues beyond the hour for between 15 and 45 sec? (Round your answer to four decimal places.)(d) What is the probability that the lecture continues for at least 75 sec beyond the end of the hour? (Round your answer to four decimal places.)
Answers: 2
Mathematics, 21.06.2019 16:30
Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?
Answers: 1
Mathematics, 21.06.2019 21:30
Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?
Answers: 3
Mathematics, 21.06.2019 22:00
(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2xβ2 intersect are the solutions of the equation 4x = 2xβ2. (4 points) part b: make tables to find the solution to 4x = 2xβ2. take the integer values of x between β3 and 3. (4 points) part c: how can you solve the equation 4x = 2xβ2 graphically? (2 points)
Answers: 1
Mathematics, 21.06.2019 23:40
When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?
Answers: 1
College professor never finishes his lecture before the end of the hour and always finishes his lect...
Mathematics, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Biology, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
English, 16.10.2020 17:01
Health, 16.10.2020 17:01
Arts, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01