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3 years ago

LCM OF 4 9 12 plz plz plz pl plz plz plz plz help

Mathematics

2 answers:

laiz [17]3 years ago

8 0

Its 36 because 4×9=36 and 12×3 is 36. hope this helps.

posledela3 years ago

5 0

36
36/4=9
36/9=4
36/12=3

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3 years ago

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otez555 [7]

Answer:

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A microscope can magnify the object it is looking at 10×4 times. How many times is that? (MCC.8.EE.3) A. 40,000 times B. 40 time

damaskus [11]

Answer:

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Step-by-step explanation:

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Comment on the answer choice

The appropriate answer depends on what you mean by your problem statement. Some microscopes magnify 40 times; others magnify 10,000 times, so we cannot tell the appropriate answer using our knowledge of microscopes.

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3 years ago

Dinosaur fossils are often dated by using an element other than carbon, like potassium-40, that has a longer half life (in this

Firlakuza [10]

The amount of substance left of a radioactive element of half life, $t_{\frac{1}{2}}$ after a time, t, is given by:

$N(t)=N_0\left( \frac{1}{2} \right)^ \frac{t}{t_{ \frac{1}{2} }}$

Given that potassium-40 has a half life of approximately 1.25 billion years.

The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:

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Therefore, the maximum age of a fossil that we could date using 40k is 12.5 billion years.

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3 years ago

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Olegator [25]

Answer:

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Step-by-step explanation:

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