Need help on precalculus
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Answers: 3
Mathematics, 21.06.2019 17:30
Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?
Answers: 2
Mathematics, 21.06.2019 19:00
What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.
Answers: 1
Mathematics, 22.06.2019 03:00
Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)
Answers: 3
Mathematics, 22.06.2019 04:10
Random variables x poisson~ ( a) ,y poisson ~ ( a) . x and y are independent. if 2 1, 2 1. u =2x+ y-1, v=2x- y +1. find: ) cov (u ,v ).
Answers: 2
English, 13.11.2019 22:31
History, 13.11.2019 22:31
History, 13.11.2019 22:31
Mathematics, 13.11.2019 22:31
History, 13.11.2019 22:31
Social Studies, 13.11.2019 22:31
English, 13.11.2019 22:31
Mathematics, 13.11.2019 22:31
Social Studies, 13.11.2019 22:31