Mathematics, 11.12.2021 16:30 bryanna0105
The radioactive compound 14CO2 may be used as a tracer to study metabolism in plants. Suppose that a compound isolated from a plant exhibited 28, 32, 27, 39 and 40 counts of radioactive decays per minute. A blank sample used to measure the background counts of the radiation counter gave 28,21, 28 and 20 counts per minute. It appears that the isolated compound gives more counts than those from background. Can we be 95% confident that the compound is indeed radioactive?
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 14:30
Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?
Answers: 1
Mathematics, 21.06.2019 21:30
The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap
Answers: 2
Mathematics, 21.06.2019 22:00
You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?
Answers: 2
You know the right answer?
The radioactive compound 14CO2 may be used as a tracer to study metabolism in plants. Suppose that a...
Questions
Mathematics, 04.06.2021 20:50
English, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
Physics, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
Chemistry, 04.06.2021 20:50
Mathematics, 04.06.2021 20:50
