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Potassium-42 has a half-life of 12.4 hours. How much of a 745 g sample will be left after 74.4 hours? Calculate the remaining mass of the sample. A) 93.75 g B) 46.88 g C) 23.44 g D) 11.72 g
asked
Aug 13, 2024
Chemistry
high-school
1
answer
0
votes
221k
views
A construction worker can install 2 windows in of a day. When setting up the schedule, the worker determines that he can install of a window per day. What was the worker's error? 1) The worker multiplied
asked
Jul 3, 2024
Mathematics
high-school
1
answer
5
votes
86.4k
views
To save for retirement, you decide to deposit $100 at the end of each month in an ira that pays 5.5% compounded monthly. how much will you have from the ira after 30 years?
asked
Jun 2, 2024
Mathematics
high-school
1
answer
5
votes
111k
views
denominator of a fraction is 2 more than the numerator . if both numerator and denominator are increased by 10 , a simplified result is 9/10. Find the original fraction. Do not simplify
asked
Dec 27, 2023
Mathematics
college
1
answer
0
votes
37.1k
views
What is the product of (2x - 5)(2x + 5)?A. 4x²-25B. 4x2+20x-25C. 4x2² - 10D. 4x² + 20x-10
asked
Nov 15, 2023
Mathematics
college
1
answer
4
votes
231k
views
A) match the graph shown with one of the following equations. b) which one of the following points lies on the line 3y=2x-1
asked
Oct 14, 2023
Mathematics
high-school
1
answer
3
votes
120k
views
A seizure can be a sign of which of the following problems? A. heart attack B. poisoning C. choking D. third-degree burn Reset Next
asked
May 1, 2023
Health
high-school
2
answers
3
votes
231k
views
g An increase in the interest rate: has no effect on investment. may be caused by a drop in investment demand. increases planned investment because people who make money from interest have more money to
asked
Dec 11, 2022
Business
college
1
answer
2
votes
121k
views
How did the Founders give the constitution the ability to change? what are these changes called and what do they do?
asked
Oct 25, 2022
Social Studies
high-school
1
answer
2
votes
222k
views
What are limiting factors and carrying capacity?
asked
Aug 28, 2022
Computers and Technology
high-school
1
answer
1
vote
122k
views
Which question about dogs could be answered through scientific investigation
asked
Jul 6, 2022
Biology
high-school
1
answer
5
votes
136k
views
Please help me please !!
asked
Jun 14, 2022
Mathematics
college
1
answer
18
votes
16.8k
views
37/16 rounded by the nearest hundredth.
asked
Feb 1, 2022
Mathematics
college
2
answers
24
votes
2.9k
views
A movie club charges a one-time membership fee of $30. It allows members to purchase movies for $7 each. Another club does not charge a membership fee and sells movies for $12 each. How many movies must
asked
Nov 7, 2021
Mathematics
high-school
1
answer
1
vote
158k
views
Is there a point where preto distribution really takes over?
asked
Oct 22, 2021
Computers and Technology
college
1
answer
2
votes
82.6k
views
The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. x 0 1 2 3 4 5 P(x) 0.10 0.25 0.30 0.20 0.10 0.05 Find P(at least
asked
Jun 28, 2021
Mathematics
college
1
answer
3
votes
96.1k
views
___________ the perspective that each culture must be understood in terms of the values and ideas of that culture and should not be judged by standards of another culture.
asked
Mar 21, 2021
Social Studies
high-school
1
answer
0
votes
12.7k
views
LL Select the correct answer. Which line has an internal rhyme?
asked
Mar 17, 2021
English
high-school
2
answers
3
votes
157k
views
A sample standard deviation of 10 weights of packages of grass seed distributed by a certain company was calculated to be 0.286. Assume that weights are normally distributed and find a 95% confidence interval
asked
Feb 10, 2021
Mathematics
college
1
answer
3
votes
85.7k
views
What is the value of the expression (x – 2y) (x + 2y) when x= 4 and y=1/2
asked
Jan 14, 2021
Mathematics
high-school
1
answer
3
votes
19.3k
views
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