Mathematics, 18.03.2021 03:20 zeckwielen3398
Given n points in space, no three of which are collinear and no four coplanar, for what
value of n will the number of straight lines be equal to the number of planes obtained by
connecting these points?โ
Answers: 2
Mathematics, 21.06.2019 19:10
The triangles in the diagram are congruent. if mzf = 40ยฐ, mza = 80ยฐ, and mzg = 60ยฐ, what is mzb?
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, 22.06.2019 01:30
Recall that two angles are complementary if the sum of their measures is? 90ยฐ. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.
Answers: 2
Given n points in space, no three of which are collinear and no four coplanar, for what
value of n...
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