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If 250 mg of a radioactive element decays to 180 mg in 24 hours, find the half-life of the element.
answered
Nov 10, 2017
Mathematics
high-school
4
votes
153k
views
Which of the following is a characteristic of a true epic? a. sarcastic tone c. parody style humor b. elevated style d. ironic theme
answered
Jul 5, 2017
English
high-school
5
votes
19.3k
views
When evacuating a burning building, do not open doors that are ___ and stay ______.?
answered
Feb 7, 2017
Social Studies
high-school
5
votes
168k
views
Enlightenment philosophers aimed to preserve the rights of individuals, including the right to
answered
Apr 14, 2016
History
high-school
5
votes
11.2k
views
Two bicyclists leave the center of town at the same time. One heads due north and the other heads due west. Later, the two cyclists are exactly 25 mi apart. The cyclist headed north has traveled 5 mi farther
answered
Feb 7, 2015
Mathematics
high-school
6
votes
201k
views
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