Description
This exercise uses the radioactive decay model.
A wooden artifact from an ancient tomb contains 60% of the carbon-14 that is present in living trees. How long ago was the artifact made? (The half-life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)
yr
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Explanation & Answer
Thank you for the opportunity to help you with your question!
0.60 = 0.5^(t/5730)
t is number of years to get to
log(.6) = (t/5730)log(0.5)
t = 4223 years :)
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Find the volume of the solid shown or described. If necessary, round to the nearest tenth.
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Question 13 options:
rectangle
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Find the area of the figure to the nearest tenth, if necessary.
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Find the lateral area and surface area of the solid. Use the 2.5 by 2.5 square as the base. Round to the nearest tenth if necessary.
Question 15 options:
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Find the volume of the solid shown or described. If necessary, round to the nearest tenth.
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Question 16 options:
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661.2 in.3
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Find the volume of the solid shown or described. If necessary, round to the nearest tenth.
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Question 17 options:
46 m3
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Question 18 options:
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The circumference of a pizza is about 38 inches. What is the diameter of the pizza? Round to the nearest tenth if necessary.
Question 19 options:
6 in.
12.1 in.
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Question 20 (5 points)
Find the shape resulting from the cross section of the cylinder.
Question 20 options:
triangle
square
circle
rectangle
Submit Quiz0 of 20 questions saved
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