The half life of lodine-131 is 8.040 days. What percentage of an Iodine-131 sample will remain after 40.20 days?
.3125%
3.125%
31.25%
312.5%

Find the given elements if matrix d:

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?