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emmasim [6.3K]
3 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]3 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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Step-by-step explanation:

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Answer:

Simplifying

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Reorder the terms:

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Solving

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Solving for variable 'a'.

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3 years ago
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Simplify the following expression: 3(2w-4y+3)+6w-6
romanna [79]

Hello There! The answer is 12w - 12y + 3.

Here's a step by step on how to solve  3(2w-4y+3)+6w-6.

Step 1: Multiply the 3 by the numbers in the parenthesis.

3(2w-4y+3)+6w-6 ⇒ 6w - 12y + 9 + 6w - 6

Step 2: Rearrange the numbers so like terms are next to each other.

6w - 12y + 9 + 6w - 6 ⇒ 6w + 6w - 12y - 6 + 9.

Step 3: Combine like terms. (6w + 6w and - 6 + 9).

6w + 6w - 12y - 6 + 9 ⇒ 12w - 12y + 3

This is your final answer since you cannot simplify any further. I hope this helps and have a great day!

4 0
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aliya0001 [1]

Answer:


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The diagonal equals the square root of the width squared plus the height squared.


Step-by-step explanation:

With this equation you would then plug in the known measurements and solve it out.

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bagirrra123 [75]

Answer:

6 hours

Step-by-step explanation:

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