Mathematics, 25.06.2021 02:30 jaylen63
Select the correct answer.
A scientist has 20 grams of the radioactive isotope sodium-24. The isotope decays exponentially as
shown in the table.
Time (hours)
Mass (grams)
5
15.9
10
12.6
15
10
20
7.9
25
6.3
30
5
Approximately what will the mass of the isotope be after 45 hours?
А. 1.5 grams
B. 2.5 grams
C. 3.5 grams
D. 4.5 grams
Answers: 1
Mathematics, 21.06.2019 16:50, fireman59937
Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x
Answers: 1
Select the correct answer.
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