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A radioisotope has a half-life of 12 hours. How much of an original 250 nanograms sample will remain after 72 hours? a) 2.6 nanograms b) 3.9 nanograms c) 5.7 nanograms d) 8.2 nanograms
asked
Dec 22, 2024
Physics
high-school
1
answer
3
votes
218k
views
Your textbook suggests that advanced planning is important primarily because such planning
asked
Dec 6, 2024
Social Studies
high-school
1
answer
2
votes
14.4k
views
When you plan to meet your friend from another class at lunch, what will you do with him?
asked
Aug 17, 2024
Social Studies
high-school
1
answer
2
votes
35.4k
views
Water budget graph for a cool temperate location
asked
May 2, 2024
Geography
high-school
1
answer
4
votes
42.7k
views
One survey found that about half of U.S. adults would be willing to take a 10% pay cut if it meant ______. a.getting a promotion b.working at a job they found meaningful c.working fewer hours d.having
asked
Apr 14, 2024
Business
high-school
1
answer
2
votes
14.2k
views
Which of the following is true about the horizontal component of a projectile? A: There is no acceleration B: The change in displacement is always negative C:The time is different than the vertical component
asked
Dec 27, 2023
Physics
high-school
1
answer
24
votes
9.3k
views
Can you help me please
asked
Aug 26, 2023
Mathematics
college
1
answer
2
votes
68.9k
views
Find x B С (5x + 2)° 33° A MLADC = 12x D
asked
Nov 8, 2022
Mathematics
high-school
1
answer
0
votes
228k
views
What is the molarity of a solution in which 35 mole of AgNO3 is dissolved in 5 L of solution?
asked
Aug 6, 2022
Chemistry
high-school
2
answers
6
votes
203k
views
7) An ionic bond could form between: (a) magnesium and potassium (b) fluoride and chloride (c) nitrogen and rubidium (d) chlorine and xenon Explanation:
asked
Jun 27, 2022
Chemistry
college
1
answer
25
votes
98.6k
views
A certain television is advertised as a 10-inch TV (the diagonal length). If the width of the TV is 6 inches, how many inches tall is the TV?
asked
Jun 18, 2022
Mathematics
high-school
1
answer
9
votes
132k
views
Why was Missouri's statehood so controversial?
asked
Jun 1, 2022
History
high-school
1
answer
3
votes
14.5k
views
What is this part of the passage mostly about? A. Lily worked with her father to make many mugs with the same shape. B. Lily needed to find a big factory that would make her mug from her. C. Lily got the
asked
May 2, 2022
English
college
2
answers
2
votes
189k
views
Lotería nacional dominicana resultados de hoy en la tarde
asked
Feb 10, 2022
Spanish
high-school
1
answer
0
votes
62.9k
views
3(−4)=12x What is the value of ?
asked
Jan 12, 2022
Mathematics
high-school
2
answers
0
votes
134k
views
Q.10 The cost of a magazine is $x and the cost of a newspaper is $(x -3). The total cost of 6 magazines and 9 newspapers is $51. Write down and solve an equation in x to find the cost of a magazine,
asked
Oct 12, 2021
Mathematics
high-school
1
answer
2
votes
161k
views
A roller coaster at the top of a 45 meter hill has a mass of 5000 kilograms. What is the potential energy?
asked
Jul 19, 2021
Physics
high-school
1
answer
4
votes
154k
views
What is the point called where the retina is connected to the eye?
asked
Jul 18, 2021
Biology
high-school
2
answers
3
votes
21.4k
views
Explain why the universe must be an isolated system to obey the law of conservation of mass.
asked
Jun 27, 2021
Physics
high-school
1
answer
4
votes
104k
views
Adalyn used 2.5 yards of fabric to make 3 decorative pillows. If she makes 12 pillows, how many yards of fabric will she need?
asked
Jun 9, 2021
Mathematics
college
1
answer
5
votes
121k
views
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