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Select the correct answer. Based on the law of conservation of energy, which statement is false? O A. Energy is lost when machines don't work right. OB. We can't add more energy to the universe. O c. We
answered
May 3, 2020
Physics
middle-school
2
votes
91.3k
views
For the graph y = 12 find the slope of a line that is perpendicular to it and the slope of a line parallel to it. Explain your answer with with two or more sentences
answered
Dec 17, 2019
Mathematics
middle-school
1
vote
225k
views
A bag contains 5 red marbles, 3 blue marbles, 7 yellow marbles, and 2 green marbles. Which ratio can be used to compare the red marbles to the blue marbles? A) 3 5 B) 3 8 C) 5 3 D) 5 8
answered
Nov 30, 2019
Mathematics
high-school
4
votes
30.8k
views
What would be the BEST title for this map ?
answered
Sep 13, 2019
Social Studies
college
3
votes
73.8k
views
Four times the difference of a number,x,and 2 is 20
answered
May 27, 2019
Mathematics
middle-school
6
votes
210k
views
A solid right triangle pyramid has a regular hexagonal base with an area of 5.2 cm^2 and height of h cn. Which expression represents the volume of the pyramid? A. 1/5(5.2)h cm^3. B. 1/5h(5.2)h cm^3 C.1/3(5.
answered
Mar 21, 2019
Mathematics
middle-school
5
votes
141k
views
What actions did the nazis take to carry out hitler's "final solution"?
answered
Mar 11, 2019
History
high-school
4
votes
49.9k
views
One group thinks the village should install windmills to provide electricity. what is the biggest problem with this plan?
answered
Oct 18, 2018
Social Studies
college
5
votes
156k
views
If you are self employed what can you do to make sure you aren't surprised by how much you owe at the end of the year? A pay estimated tax quarterly B use payroll withholding C fill out a W-4 form D get
answered
Aug 31, 2018
Business
high-school
0
votes
200k
views
What is 5 1/2 - 2 5/6
answered
Mar 18, 2018
Mathematics
college
2
votes
189k
views
The sale of sports cars in the United States during one year was 550,000. Two hundred five thousand cars had six cylinders and the rest had four cylinders. What is the probability that the next sports
answered
Feb 20, 2018
Mathematics
high-school
4
votes
119k
views
Superior,Michigan,Huron,Erie and Ontario. what are these lakes called
answered
May 28, 2017
History
middle-school
0
votes
21.3k
views
A plumber charges $55 per hour plus a $50 service charge. Kevin hired the plumber to install a new hot water heater. What are the total charges if the plumber took 4 hours to complete the installation?
answered
May 22, 2017
Mathematics
high-school
0
votes
186k
views
Which of the following expressions are equivalent? Justify your reasoning. (͜͡a). 4√x³ (͜͡b). 1/(x⁻¹) (͜͡c). 10√x⁵•x⁴•x² (͜͡d). x⅓* x⅓* x⅓
answered
Feb 23, 2017
Mathematics
middle-school
4
votes
194k
views
What was the significance of the Second Battle of the Marne?
answered
Jan 12, 2016
History
high-school
4
votes
99.1k
views
Without selective breeding, dogs today would probably have a greater number of differences. T or F
answered
Aug 29, 2015
Biology
high-school
5
votes
73.2k
views
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