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Sarah used properties of operations to simplify the expression. Identify the property she used at each step. 1) -1.85+2.3+(-0.45)=2.31+(1.85)+(-0.45) 2) =2.3+[(-1.85) + (-0.45)] 3) 2.3 + (-2.3) 4) = 0
answered
Dec 27, 2019
Mathematics
college
3
votes
4.0k
views
The population of a town has approximately doubled every 17 years since 1950. If the equation P=Po2k, where Po is the population of the town in 1950, is used to model the population, P, of the town t years
answered
Jun 18, 2019
Mathematics
middle-school
2
votes
215k
views
What is the explicit formula for this sequence? −8, −3, 2, 7, …
answered
Jun 13, 2019
Mathematics
college
6
votes
60.0k
views
An interplanetary probe returns to Earth with soil samples. The atoms in the sample are sorted by their number of protons. A new element is discovered! The new element has 120 protons. 20.0% of these new
answered
May 26, 2019
Chemistry
middle-school
2
votes
179k
views
Mia records the distance traveled in x minutes in the table below, while Alexa uses a graph to record her distance traveled over the same time period. (look at the graphs) Based on the data on the graph
answered
Apr 12, 2019
Mathematics
middle-school
5
votes
53.8k
views
What is the GCF 50j, 75jk
answered
Jan 6, 2019
Mathematics
middle-school
3
votes
71.2k
views
C(x) = 0.5x+70 find the domain and range
answered
Nov 20, 2018
Mathematics
high-school
0
votes
215k
views
What was the plan created by carter to combat the trade deficit? a. import blocking plan c. higher tariff plan b. national energy plan d. national total buying plan
answered
Oct 29, 2018
Social Studies
high-school
7
votes
205k
views
In mitochondrial electron transport, what is the direct role of o2
answered
Mar 10, 2018
Biology
high-school
6
votes
131k
views
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