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5. The atmosphere of early Earth is unlike today's atmosphere. A. When did oxygen first appear in Earth's early atmosphere? (3 points) B. What factor caused the appearance of oxygen? (3 points) C. What
asked
Nov 28, 2024
Biology
college
1
answer
0
votes
55.6k
views
assume that A and B are invertible matrices of the same order. 25. Simplify (AB⁻¹)⁻¹. 26. Simplify (A⁻¹B)⁻¹.
asked
Oct 19, 2024
Mathematics
high-school
1
answer
1
vote
103k
views
Inspectors should flush all toilets. A) True. B) False.
asked
Sep 24, 2024
Health
high-school
1
answer
1
vote
145k
views
Mark wants to order a pizza. Select the correct number from the drop down menu to complete the explanation for which is the better deal. Round your answer to the nearest cent. Use 3.14 for straight pi.
asked
Sep 17, 2024
Mathematics
high-school
1
answer
2
votes
78.9k
views
the reaction of bromine with an alkene such as cyclopentene is a good laboratory test for the presence of a double bond in a compound. what type of reaction is it?
asked
Aug 28, 2024
Chemistry
high-school
1
answer
3
votes
85.2k
views
A cylinder's base has a radius of 8 m, and its volume is 512π m³. What is this cylinder's height? a) 8 m b) 16 m c) 32 m d) 64 m
asked
Apr 28, 2024
Mathematics
high-school
1
answer
0
votes
22.7k
views
A body starts from rest and travels with uniform acceleration of 3m/s² and then decelerates at uniform rate of 2m/s² again to come down to rest if the total time of journey is 10 seconds then find the
asked
Mar 8, 2024
Physics
high-school
1
answer
3
votes
98.1k
views
Lady boil is 5 foot 6 inches Wylie Willie is 4 foot 5 inches skelly ton is 6 feet vamp pyre is 6 foot 8 inches jack lantern is 5 foot 6 inches underly ded is 6 foot 7 inches You need to do math to solve
asked
Dec 20, 2023
Mathematics
high-school
1
answer
5
votes
6.9k
views
Which numbers are the extremes of the proportion shown below
asked
Dec 9, 2023
Mathematics
high-school
1
answer
8
votes
176k
views
Help with this trying to get extra credit
asked
Nov 17, 2023
Mathematics
high-school
2
answers
0
votes
193k
views
What is the mass in grams of 16.86 mL of acetone?Express your answer to four significant figures and include the appropriate units.What is the volume in milliliters of 7.06 g of acetone?Express your answer
asked
Jul 6, 2023
Physics
college
1
answer
3
votes
63.9k
views
 After World War II, the atomic bomb A) none of the above. B) was used by the Soviets in combat. C) led to nuclear power for civilian use. D) was declared a mistake by Truman.
asked
Jun 28, 2023
History
high-school
2
answers
16
votes
18.2k
views
How are electromagnetic waves different from mechanical waves? A Electromagnetic waves need a medium to travel through; mechanical waves don't.incorrect answer B Electromagnetic waves can travel through
asked
Dec 19, 2022
Physics
middle-school
2
answers
5
votes
97.5k
views
What three key beliefs about Americas industrial capitalist economy were reflected in the open door policy
asked
Dec 4, 2022
History
college
2
answers
3
votes
1.3k
views
Solve for an angle in right triangles
asked
Sep 2, 2022
Mathematics
high-school
1
answer
0
votes
44.8k
views
Explain the strengths and weaknesses of Lamarck's theory of evolution.
asked
Jun 6, 2022
Biology
college
2
answers
22
votes
79.5k
views
Give me two push factor on Africa economic
asked
May 21, 2022
Social Studies
high-school
2
answers
8
votes
204k
views
Rudy Banks has won $5000 to attend university. If he invests the money in an account at 12% per annum, compounded monthly, how much can he draw monthly for the next 3 years?
asked
Apr 27, 2022
Mathematics
college
1
answer
4
votes
75.4k
views
1) Have you ever been stopped by the police because of your appearance? If you have, what was your reaction? 2)If you haven’t what do you think your reaction would be? Why do you think you would react
asked
Mar 25, 2022
English
college
1
answer
21
votes
144k
views
True/False: For the same system, heterogeneous nucleation will occur at less undercooling than homogeneous nucleation.
asked
Feb 4, 2022
Chemistry
high-school
1
answer
3
votes
160k
views
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