The radioactivity of certain element decreases 10 percent every year. Determine the half-life of the element. (Note: "half-life" is the term used for the time required for the radioactivity of the element t reduce to half its original amount.) a. 3.6 b. 5.6 c. 7.6 d. 8.6
The radioactivity of certain element decreases 10 percent every year. Determine the half-life of the element. (Note: "half-life" is the term used for the time required for the radioactivity of the element t reduce to half its original amount.) a. 3.6 b. 5.6 c. 7.6 d. 8.6
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Instruction: Select the correct answer for each of the following questions. Follow the instructions. Kindly provide a COMPLETE and CLEAR solution. Answer it ASAP because I really need it right now.
The answer should be typewritten.
Answer #7 ONLY
Transcribed Image Text:6.
7.
Determine x, so that: x, 2x + 7, 10x - 7 will be in geometric progression.
a. -7/6
b. -11/3
The radioactivity of certain element decreases 10 percent every year. Determine the half-life of the element.
(Note: "half-life" is the term used for the time required for the radioactivity of the element t reduce to half its
original amount.)
a. 3.6
b. 5.6
C
C.
c. -5/7
d. -4/7
J
c. 7.6
d. 8.6
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