A scientist obtained a sample that contained 80 grams of radioactive Barium-122 that decays exponentially over time. The amount of Barium-122 that remained in the sample at observed times is shown in the table. Radioactive Decay of Barium-122 Mass of Remaining Barium-122 (grams) Time (minutes) 80.0 1 56.6 40.0 28.3 20.0 If the radioactive decay continues at the same rate, which is closest to the amount of the sample of Barium-122 remaining at 5 minutes? OA 8.3 grams OB 10.0 grams OC 11.7 grams D 14.1 grams

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 35EQ
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A scientist obtained a sample that contained 80 grams of radioactive Barium-122 that decays
exponentially over time. The amount of Barium-122 that remained in the sample at observed
times is shown in the table.
Radioactive Decay of Barium-122
Mass of
Remaining
Barium-122
(grams)
Time
(minutes)
80.0
1
56.6
40.0
3
28.3
4
20.0
If the radioactive decay continues at the same rate, which is closest to the amount of the sample
of Barium-122 remaining at 5 minutes?
O A 8.3 grams
OB 10.0 grams
OC 11.7 grams
OD 14.1 grams
O a
C@
$
7
8
2
4
e
r
t y
W
# m
Transcribed Image Text:A scientist obtained a sample that contained 80 grams of radioactive Barium-122 that decays exponentially over time. The amount of Barium-122 that remained in the sample at observed times is shown in the table. Radioactive Decay of Barium-122 Mass of Remaining Barium-122 (grams) Time (minutes) 80.0 1 56.6 40.0 3 28.3 4 20.0 If the radioactive decay continues at the same rate, which is closest to the amount of the sample of Barium-122 remaining at 5 minutes? O A 8.3 grams OB 10.0 grams OC 11.7 grams OD 14.1 grams O a C@ $ 7 8 2 4 e r t y W # m
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