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Sedaia [141]
3 years ago
13

A 11 gram sample of substance that's used to treat thyroid disorders s has a k-value of 0.1247

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
8 0

Answer:

You don't have a question but I'll answer what I can.

half-life = natural log (.5) / k

half-life =  -.693147 / .1247

half-life = 5.561106656

It seems you did not express the k-value properly.

1) A k-value should have a negative value.

2) A k-value should also have units.

For example, the k-value of tungsten 181 is

-0.005723757 / days

Step-by-step explanation:

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Sarah uses a total of 36 sheets of paper for her story. Each chapter is 9 pages , how many pages are in her short story
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Answer:

4 pages

Step-by-step explanation:

You divide 36 by 9

4 0
3 years ago
The sum of two numbers is 43, and their product is 450. What is their difference?​
kow [346]

Answer:

List the factors of 450

1,450

3,150

5,90

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The factor with the sum of 43 is 18+25

25-18=7 so the difference is 7

hope this helps

Step-by-step explanation:

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Step-by-step explanation:

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line L passes through point (2, -5) and is perpendicular to the line with equation y=7. determine the equation of line L
Andrew [12]

Answer:

The equation of the line L is x=2

Step-by-step explanation:

we know that

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The slope of the line L is undefined

The line L passes through the point (2,-5)

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Find X.............​
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