Mathematics, 13.02.2021 04:40 tyde4209
A scientist kept 100 grams of a radioactive material in a container. After 280 days, he observed that 25 grams of the radioactive material was left in the container. Based on the observation, which of these is the most likely inference drawn by the scientist? (1 point)
A: About 50 grams of the material was left in the container after 70 days.
B: About 50 grams of the material was left in the container after 140 days.
C: The radioactive material will decay totally in 560 days.
D: The radioactive material will decay totally in 840 days.
Answers: 1
Mathematics, 21.06.2019 16:30, amir6658
Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.
Answers: 1
Mathematics, 21.06.2019 18:00, kezin
The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?
Answers: 1
Mathematics, 21.06.2019 20:00, whosdarrin9396
If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).
Answers: 3
Mathematics, 21.06.2019 23:30, allisonlillian
The product of sin 30 degrees and sin 60 degrees is same as the product of
Answers: 1
A scientist kept 100 grams of a radioactive material in a container. After 280 days, he observed tha...
Biology, 27.02.2020 01:25
Mathematics, 27.02.2020 01:25
Mathematics, 27.02.2020 01:25
Social Studies, 27.02.2020 01:25
Biology, 27.02.2020 01:25