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Answer:
mean average = 2542.5 mg
1330 mg
Explanation:
The patient's average daily intake of sodium for those 4 days can be calculated by taking the mean average of the sample amounts given over the number of the total days.


mean average = 2542.5 mg
Therefore the patient's average daily intake of sodium for those 4 days = 2542.5 mg
What is the patient’s average daily intake of sodium for those 4 days?
What would his 5th day sodium intake need to be to drop him below an average of 2300 mg
given that mean average = 2300; we can also determine the fifth day sodium intake as follows:




y = 1330 mg
Hence, his sodium intake for the fifth day will be 1330 in order to drop him below an average of 2300 mg
Tell me why i got this question got it right and now won’t remember but i’ll get back at you when i remember
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