<em>Two heads are better than one</em> is an idiom meaning that it's easier to solve a problem or come up with an idea with the help of another person than alone.

<em>Two is company, three is a crowd </em>is an idiom usually associated with a romantic context. It's used to say that a third person should leave when two people (e.g. lovers) want to be together on their own.

So, when we compare these explanations, we can't say that these two sentences mean the same, nor the opposite.

6 0

2 years ago

The half-life of carbon-14 is about 5700 years. If you left those 100 carbon-14 atoms to sit around for 5700 years, how many wou

Sergeu [11.5K]

Answer:

50 atoms have decayed during that time

Explanation:

The radioactive decay is represented as

$N = N_0 * \frac{1}{2}^X\\$

Where N is the amount of radioactive element after a certain time period

N0 is the amount of radioactive element during the initial time period

X is the half life of the radioactive element

Substituting the given values in above equation, we get:

$N = 100 * \frac{1}{2}^1\\N = 50$ atoms

So, 50 atoms of carbon-14 remain are left after decaying for 5700 years.

Hence, atoms of carbon-14 that decay during 5700 years are 100-50 - 50

5 0

2 years ago