A medical scientist has a 15-gram sample of I-13, And would like to know it's half-life in days. he also knows that k=0.0856
2 answers:
Answer:
The number of days is approximately 8.
Step-by-step explanation:
Given : A medical scientist has a 15-gram sample of I-13, And would like to know it's half-life in days. he also knows that k=0.0856.
To find : The half-life, in days, of I-131 using the information at the left?
Solution :
The decay model is given by
We have given that,
The substance's half-life is the time it takes for the substance to decay to half its original amount.
i.e.
The value of k is k=0.0856.
Substitute the values in the formula,
Taking natural log both side,
Therefore, The number of days is approximately 8.
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<em>Translate into an algebraic equation:-</em>
<em>The quotient of a number and 5.</em>
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✳︎ First, the word "quotient" indicates that we divide.
Here, we have the quotient of a number and 5, so we divide the number by 5; let the number be d.
So the quotient of d and 5 looks as follows:-
One leg is horizontal, on the line y=3. Another leg is vertical, on the line x=1. The point where these intersect, D(1, 3) is the vertex of a right angle. Any right triangle inscribed in a circle has its hypotenuse as the diameter of the circle.
Since the triangle is a right triangle, the circumcenter is the midpoint of the hypotenuse: ((8, 3) + (1, -5))/2 = (4.5, -1).
