. . e . u o applecreditunionr... e NewTab Semjngs M Gmall VouTube 9 Maps & Translate 8. [l1 Points] DETAILS SCALCB 8.5.012. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER ' The time between infection and the display of symptoms for streptococcal sore throat is a random variable whose probability density function can be approximated by the following. f(t) = tze'D-D5t if 0 S t S 150 and t) = O othenNise (t measured in hours) What is the probability that an infected patient will display symptoms within the first 60 hours? (Round your answer to three decimal places.) S (b) What is the probability that an infected patient will not display symptoms until after 48 hours? {Round your answer to three decimal places.) Z Need Help? (6) ASK YOUR TEACHER PRACTICE ANOTHER An online retailer has determined that the average time for credit card transactions to be electronically approved is 1.8 seconds. (Round your answers to three decimal places.) 9. [l1 Points] SCALCB 8.5.011. (a) Use an exponential density function to find the probability that a customer waits less than a second for Credit card approval. (b) Find the probability that a customer waits more than 3 seconds. (c) What is the minimum approval time for the slowest 5% of transactions? Need Help? VA 8.R Q3 - MTH264-U22, section 07 X Course Hero X + V X -> C webassign.net/web/Student/Assignment-Responses/last?dep=29224107 y! apple credit union -... New Tab Settings M Gmail YouTube ) Maps Translate 10. [-/1 Points] DETAILS SCALC9 8.3.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Visually estimate the location of the centroid of the region shown. Then find the exact coordinates of the centroid. N 1 y = X IN X 2 3 ( x , V ) = Need Help? Read It HOM w 11:54 PM 7/4/2022VA 8.R Q3 - MTH264-U22, section 07 X Course Hero X + V X C webassign.net/web/Student/Assignment-Responses/last?dep=29224107 y! apple credit union -... New Tab Settings M Gmail YouTube ) Maps Translate ( X, y) = Need Help? Read It Submit Answer 11. [-/1 Points] DETAILS SCALC9 8.1.019. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the exact length of the curve. 2Vy (y - 3), 9Sys 25 Need Help? Read It Watch It 19 5 / Dointel DETAILS MY NOTES ACK VOLD TEACUED DRACTICE ANOTHER HOM W 11:54 PM 7/4/2022