Mathematics, 27.07.2019 02:30 josie6471
Aradioactive substance has a decay rate of 5% per hour. if 500 hundred grams are present initially, how much of the substance remains after 4 hours?
Answers: 1
Mathematics, 21.06.2019 20:30, Travisbennington
Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.
Answers: 1
Mathematics, 21.06.2019 22:50, tali2561
Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?
Answers: 1
Aradioactive substance has a decay rate of 5% per hour. if 500 hundred grams are present initially,...
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