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Which is the number of atoms in 4.5 moles of Hg, correctly written in scientific notation with the correct number of significant figures?
answered
Sep 15, 2018
Chemistry
high-school
5
votes
29.8k
views
A person 6 ft tall casts a shadow 5ft long. at the same time, a nearby tree casts a shadow 31 ft long. find the height of the tree
answered
Sep 8, 2018
Mathematics
high-school
2
votes
141k
views
What can be a good title for the science project "Does Chewing Gum Help You Concentrate" ?
answered
Jul 16, 2018
Biology
middle-school
4
votes
7.7k
views
Describe the end behavior of the function: y = x3 + 3x2 - 2x + 4 a)left - rises, right - falls b)left - rises, right - rises c)left - falls, right - falls d)left - falls, right - rises
answered
Jun 17, 2018
Mathematics
high-school
1
vote
71.3k
views
What is the rotational symmetry of this shape
answered
Jan 12, 2018
Mathematics
middle-school
1
vote
2.6k
views
Sharita does special typing jobs for scientists. She charges $13 for the first 3 pages and $3 for each additional page of scientific typing. Sonia a biologist paid $106 to have a research paper typed.
answered
Jun 7, 2017
Mathematics
middle-school
5
votes
197k
views
All equilateral triangles are also isoseles triangles? True or false
answered
Apr 18, 2017
Mathematics
high-school
4
votes
235
views
What type of money system did Thomas Jefferson create?
answered
Jan 24, 2017
Social Studies
middle-school
3
votes
196k
views
Analyzing Causes and Recognizing Effects on the back of this paper, explain the concepts of racism and Social Darwinism and how they relate to the policy of imperialism.
answered
Jan 18, 2017
History
high-school
3
votes
211k
views
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