2 years ago

A chemist has a 100 gram sample of a radioactive

1 answer:

3 0

Answer:

Step-by-step explanation:

did it 5 mins ago

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zavuch27 [327]

It should be A.
i know this because a proportion line is a straight line that travels through the origin.

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2 years ago

lilavasa [31]

10 books cost $30. To figure it out, it's just 3 times the number of books. XD

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2 years ago

zubka84 [21]

I assume the equation is supposed to be

$3^{x+2}=8^{x-1}$

Then we can write

$9\cdot3^x=\dfrac18\cdot8^x\implies\left(\dfrac38\right)^x=\dfrac1{72}$

Take the logarithm of base 3/8 on both sides:

$\log_{3/8}\left(\dfrac38\right)^x=\log_{3/8}\dfrac1{72}$

$\implies x\log_{3/8}\dfrac38=-\log_{3/8}72$

$\implies x=-\log_{3/8}72$

- - -

If the equation is actually $3^x+2=8^x-1$ , I'm afraid it cannot be solved exactly.

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2 years ago

Oksi-84 [34.3K]

Answer: a ratio

Step-by-step explanation:

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2 years ago

prisoha [69]

The answer to your question would be w=9

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2 years ago