Mathematics, 23.09.2021 14:00 jonquil201
10. Two lighthouses are located on a north-south line.
From lighthouse A the bearing of a ship 3742 m away
is 129° 43'. From lighthouse B the bearing of the ship
is 39° 43'. Find the distance between the lighthouses.
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the
Answers: 1
Mathematics, 21.06.2019 17:30
Can someone me with this problem i don't understand i need
Answers: 2
Mathematics, 21.06.2019 23:30
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
Mathematics, 21.06.2019 23:30
Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7
Answers: 1
10. Two lighthouses are located on a north-south line.
From lighthouse A the bearing of a ship 374...
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