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The half-lives for the radioactive decay of various elements are listed below. Parent Isotope Daughter Isotope Half Life (years) Carbon-14 Nitrogen-14 5730 Uranium-235 Lead-207 710 million Potassium-40
asked
Nov 19, 2021
Physics
college
1
answer
1
vote
59.1k
views
Help answer this World geography question please
asked
Nov 5, 2021
Geography
middle-school
1
answer
2
votes
106k
views
Choose an equivalent expression for 123 • 129 • 124 • 122.
asked
Jul 5, 2021
Mathematics
high-school
1
answer
1
vote
113k
views
Last year a restaurant chain spent 3.3 X 106 dollars opening new restaurants. This year the restaurant will spend 9.9 X 105 dollars. Which statement is true? А The restaurant spent $330,000 dollars last
asked
May 8, 2021
Mathematics
college
1
answer
3
votes
215k
views
Describe three way of nitrogen fixation in nature ?
asked
Apr 15, 2021
Physics
high-school
1
answer
1
vote
210k
views
2981/35=-11/7(8m+9/5
asked
Mar 26, 2021
Mathematics
middle-school
1
answer
0
votes
200k
views
A angle measures 72 degrees more than its supplementary what is the measurement of each angle
asked
Feb 15, 2021
Mathematics
middle-school
2
answers
2
votes
201k
views
Which order pair comes from the table?
asked
Feb 1, 2021
Mathematics
middle-school
2
answers
5
votes
175k
views
9. A club had some money to purchase new chairs. After buying 355 chairs at $199 each, there was $1,068 remaining. How much money did the club have at first?
asked
Jun 5, 2020
Mathematics
middle-school
2
answers
3
votes
207k
views
Match each equation to its graph. Use the drop-down menus to describe the equations. y = x + 1 y = x2 y = ( 3 2 ) x y = x2 + 2 x2 − 2
asked
Jan 21, 2020
Mathematics
middle-school
2
answers
1
vote
183k
views
Help please help me please
asked
Aug 17, 2019
Mathematics
middle-school
1
answer
0
votes
152k
views
What are some ideas for reflections this year!?! The theme is Within Reach!!
asked
Feb 15, 2019
Arts
middle-school
1
answer
1
vote
113k
views
Determine the expected diffraction angle for the first-order reflection from the (310) set of planes for bcc chromium when monochromatic radiation of wavelength 0.0777 nm is used. the atomic radius for
asked
Sep 10, 2018
Physics
college
1
answer
3
votes
217k
views
What type of front is associated with hail storms
asked
Jul 9, 2018
Chemistry
middle-school
2
answers
2
votes
8.2k
views
Ernesto le va a dar $10 a su hermana para que ella __________ ir al cine con sus amigas. (poder)
asked
Jun 15, 2018
Spanish
high-school
1
answer
5
votes
11.7k
views
What distinguishes one culture from another?
asked
May 28, 2018
History
high-school
2
answers
4
votes
65.9k
views
Write an example of a 6-letter acronym made from letter A
asked
Feb 11, 2018
Mathematics
middle-school
1
answer
4
votes
43.3k
views
In what ways is reading positive
asked
Jan 28, 2018
English
college
2
answers
3
votes
97.3k
views
One ball rolls along a shelf at a steady rate . A second ball rolls off the shelf and gains speed
asked
Jul 3, 2017
Physics
middle-school
1
answer
2
votes
18.7k
views
Which of the following rocks is commonly used as an abrasive?
asked
Jan 6, 2017
Chemistry
high-school
2
answers
2
votes
41.3k
views
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