Mathematics, 02.06.2021 20:40 flyingcerberus1408
I know this has already been asked, but it doesnt actually have an answer, so can some one solve it?
Technetium-99m is used as radioactive tracer for certain medical tests. It has a half-life of 1 day. Consider the function T where T(d) = 100(2)^-d is the percent of technetium-99m remaining d days after the test. Which expression represents the number of days until only 5% remains?
A) log20 2.
B) -log2 20.
C) log2 (1/20).
D) -log2 (1/20).​
Answers: 2
Mathematics, 21.06.2019 23:00
Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?
Answers: 2
Mathematics, 21.06.2019 23:10
12 3 4 5 6 7 8 9 10time remaining01: 24: 54which graph represents this system? y=1/2x + 3 y= 3/2x -1
Answers: 1
Mathematics, 21.06.2019 23:20
Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?
Answers: 1
I know this has already been asked, but it doesnt actually have an answer, so can some one solve it?...
History, 07.07.2019 09:00
History, 07.07.2019 09:00
Mathematics, 07.07.2019 09:00
Mathematics, 07.07.2019 09:00
History, 07.07.2019 09:00
Health, 07.07.2019 09:00
Biology, 07.07.2019 09:00
History, 07.07.2019 09:00
Arts, 07.07.2019 09:00
Mathematics, 07.07.2019 09:00
Geography, 07.07.2019 09:00
Mathematics, 07.07.2019 09:00