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emmasim [6.3K]
2 years ago
7

A 33 gram sample of a substance that's used to detect explosives has a k-value of 0.1467.

Mathematics
1 answer:
romanna [79]2 years ago
3 0

Answer:From the attached graphic, Half-life = ln (.5) / k

Half-life =.693147 / 0.1142

= 6.0695884413 days

Step-by-step explanation:The value of "k" should be negative and should have units associated with it.

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#82 will give brainliest to best answer!​
Fofino [41]

Answer:

\frac{6}{k-6}

Step-by-step explanation:

First, we can factor all of the following equations to turn that weird, huge looking thing into \frac{(k+6)(k-6)}{(k-6)(k-10)} ÷ \frac{(k-6)^2}{k(k-6)} × \frac{6(k-10)}{k(k + 6)}. We know that division is simply multiplication by the reciprocal, so that whole equation will turn into \frac{(k+6)(k-6)}{(k-6)(k-10)} × \frac{k(k-6)}{(k-6)^2} × \frac{6(k-10)}{k(k+6)}. Now we can cancel out some values if they are both in the numerator and denominator, which will turn that still huge looking thing into \frac{6}{k-6} which is our final answer, as it cannot be simplified further.

Hope this helped! :)

7 0
2 years ago
Read 2 more answers
What is the volume of a rectangular prism with a height of 6 m, a length of 4 m, and a width of 2 m?
Debora [2.8K]

Answer:

48m

Step-by-step explanation:

Formula: lwh

4*2*6=48m

6 0
2 years ago
What is 7/8+14/16+4/5
Jlenok [28]

Answer:

The answer is 2.55

Step-by-step explanation:


3 0
3 years ago
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Suppose you take a class from each of the following four professors: 1, 2, 3, and 4. You write five papers and get the following
harina [27]

Answer:

Professor 1 as he gave the maximum number of A's .

5 0
3 years ago
There are cars, trucks, and motorcycles in our company parking lot. the ratio of cars to trucks to motorcycles is $7:5:2.$ if th
MAXImum [283]
Given the ratio of cars, trucks and motorcycles 7:5:2 and the total number of cars is 48, to get the number of motorcycles we proceed as follows:
fraction of cars to total number
(5+7)/(7+5+2)
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=6/7
the total number of cars, trucks and motorcycles will be:
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total number motorcycles
2/14*56
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4 0
2 years ago
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