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The half-life of a radioisotope is the amount of time it takes for A. half the sample to decay. B. all the sample to decay. C. the age of an artifact to be calculated. D. detectable radiation to be absorbed
answered
Mar 1, 2018
Chemistry
high-school
5
votes
19.2k
views
A warm front is heading toward Chicago. what type of weather would one expect when it arrives warm and sunny cold and dry cold and rainy warm and rainy
answered
Feb 26, 2018
Biology
middle-school
4
votes
137k
views
During ww2 about 1.8% of us soldiers were killed directly in battle. This number went down to 0.5% at Vietnam war. What was this number in the Persian gulf war? 0.1%? 0.06%? 0.001%? Or 0.01%?
answered
Feb 6, 2018
History
college
2
votes
39.1k
views
Complete equation and tell what property used 64+58=__+64
answered
Aug 24, 2017
Mathematics
middle-school
5
votes
211k
views
Which music technique is common in madrigals
answered
Jul 29, 2017
Arts
high-school
5
votes
178k
views
Use each of the digits 2 3 5 and 8 once. Write a expression that equals 104
answered
Jun 10, 2017
Mathematics
middle-school
1
vote
146k
views
Effective compare-and-contrast essays contain which of the following? three subjects compared by differences and cost unlimited subjects compared by differences two or more subjects compared by similarities
answered
Jan 30, 2017
English
high-school
4
votes
208k
views
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