The correct answer is:
__________________________________________
BOTH:
__________________________________________
[C]: "feet in the numerator" ; <em><u>AND</u></em>:
__________________________________________
[D]: "yards in the denominator" .
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The time it takes for 1g of strontium-90 to decay to 250 mg is; 57.6 years
<h3>What is the half life of an element?</h3>
The formula for half life is;
A(t) = A₀ * (¹/₂)^(t/t_1/2)
Where;
A(t) is amount left after t years
A₀ the initial quantity of the substance that will undergo decay;
t_1/2 is the half-life of the decaying quantity.
We are given;
t_1/2 = 28.8 years
A₀ = 1 g
A(t) = 250 mg = 0.25 g
Thus;
0.25 = 1 * (¹/₂)^(t/28.8)
log 0.25 = (t/28.8) log (1/2)
-0.60206 = (t/28.8) * -0.3010
t = 2 * 28.8
t = 57.6 years
Read more about half life at; brainly.com/question/11152793
Your question was wrong, see the right question here?
Analyze the extent the conservative Reagan changed the economic and social policies of the United States from 1980 to 2008.
Answer:
Ronald Wilson Reagan (February 6, 1911 – June 5, 2004) was an Hollywood actor and union leader before serving as the 33rd governor of California from 1967 to 1975. He later became the 40th president of the United States from Jan 20, 1981 to Jan 20, 1989 and was highly influential as voice of modern conservatism.
During his terms, Reagan new political and economic initiatives. His economic policies, was termed "Reaganomics", he advocated tax rate reduction to spur economic growth, economic deregulation, and reduction in government spending. Over his two terms, the economy saw a reduction of inflation from 12.5% to 4.4% and an average real GDP annual growth of 3.4% but increased military spending, which contributed to increased federal debt overall.
Reaganomics produces some multiplier effect on economic growth in such that income tax cuts give workers more incentive to work and increased the supply of labor. Not until 2008, when American economy enters recession which led many Americans to loose their job, Reaganomics was known to be one the best economic policy in the history of America.
Answer:
Python is commonly used for developing websites and software, task automation, data analysis, and data visualization. Since it's relatively easy to learn, Python has been adopted by many non-programmers such as accountants and scientists, for a variety of everyday tasks, like organizing finances.
Explanation:
First, find a friend who knows Python. They can encourage you in your journey and also help you when you get stuck. ...
Second, install the latest version of Python from Python.org onto your computer.
Third, read through a good Python book for beginners.
Answer:
Waylon ran at a speed of 9 miles per hour.
Explanation:
A hour equals to 60 minutes, then, the equivalent time is found:
Let suppose that Waylon runs at constant speed, so that equation is equal to:
Where:
- Speed, measured in miles per hour.
- Travelled distance, measured in miles.
- Time, measured in hours.
If we know that 
and , then:
Waylon ran at a speed of 9 miles per hour.
