Answers by Peter Richter
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Answers by Peter Richter

Answers by Peter Richter
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What is the sign of the heat change for an exothermic reaction? for an endothermic reaction?
answered May 22, 2019
6 votes
81.6k views
Write using algebra. Jimmy ran m miles in t minutes. What was his speed?
answered Oct 3, 2018
1 vote
15.0k views
One factor that contributed to the rise of sectionalism after the war of 1812 was
answered Sep 9, 2018
2 votes
41.0k views
PLEASE HELP WILL GIVE TWENTY POINTS Which is the best approximation for the measure of angle ABC?
answered Aug 20, 2018
3 votes
200k views
PLEASE HELP ASAP!!!! What is the first quartile,Q1, of the data set? {23, 28, 28, 36, 56, 60, 61, 65, 70}
answered Jun 6, 2018
3 votes
53.4k views
Which expression is equivalent to 7^3 ⋅ 7^−5? A.7^2 B.7^7 C.1 over 7 to the 2nd power D.1 over 7 to the 7th power
answered Apr 26, 2018
2 votes
189k views
How does a physical property change without causing a change in the substance, such as mass and texture??
answered Dec 14, 2017
3 votes
205k views
How do autotrophs and heterotrophs obtain the materials needed to build needed macromolecules ( 2 different sources for autotrophs?) How are organelles structurally adapted to maximize the uptake of these
answered Mar 17, 2017
3 votes
71.7k views
Which equation represents the line shown? A. y = -2x+2 B. y = -2x—2 C. y = -1/2x—2 D. y = -1/2x+2
answered Jan 12, 2017
0 votes
198k views
How is a government conducted under a dictatorship ?
answered May 24, 2016
4 votes
206k views
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