Mathematics, 23.10.2020 09:01 lizzymikaelson22
Elmer has a collection of 300 fossils. Of these, 21% are fossilized snail shells. How many fossilized snail shells does Elmer have?
Answers: 3
Mathematics, 21.06.2019 14:30
You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )
Answers: 1
Mathematics, 21.06.2019 16:50
Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm
Answers: 2
Mathematics, 21.06.2019 20:30
Secant be and cf intersect at point d inside a what is the measure of cde
Answers: 1
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
Elmer has a collection of 300 fossils. Of these, 21% are fossilized snail shells.
How many fossiliz...
Mathematics, 14.10.2020 19:01
Physics, 14.10.2020 19:01
Mathematics, 14.10.2020 20:01
Mathematics, 14.10.2020 20:01
Mathematics, 14.10.2020 20:01
Mathematics, 14.10.2020 20:01
Mathematics, 14.10.2020 20:01
Computers and Technology, 14.10.2020 20:01
History, 14.10.2020 20:01
Social Studies, 14.10.2020 20:01
History, 14.10.2020 20:01