Answer:
To avoid confusion in using the word "particle," one must state that a particle is an identifiable part of dust, a molecule, an atom, or an electron. This means that particles form these elements.
Step-by-step explanation:
For example, atoms are made up of three particles: protons, neutrons and electrons. These particles are each composed of even smaller particles known as quarks. Since quarks cannot be broken down further, they are the smallest particles known to mankind.
Answer:
b
Step-by-step explanation:
Because the population is too large and it would be impractical to survey the whole population, a sample of the population is chosen to take part in the survey. This sample is taken as been representative of the whole population
Based on the sample, the fraction of students that speak more than one language fluently = 15/90= 0.166667
Population that would speak more than one language fluently = 0.166667 x 1800 = 300
If the equation is kx= y then when x = 12 y would = 1.5
<h2>
1. FIRST QUESTION.</h2>
M is directly proportional to 
Suppose you have two variables, say, 
. We say that 
varies directly as 
or, in other words, is directly proportional to if and only if:
Where 
is a nonzero constant called the constant of proportionality.
Knowing this, we can solve this problem. Here 
is directly proportional to . So:
We know that when 
, hence the constant of proportionality can be found as follows:
So:
<h3>PART A)</h3>
When 
, then:
<h3>PART B)</h3>
When 
, then:
![540=\frac{5}{2}(r^3) \\ \\ r^3=\frac{2(540)}{5} \\ \\ r^3=216 \\ \\ r=\sqrt[3]{216} \\ \\ \boxed{r=6}](https://tex.z-dn.net/?f=540%3D%5Cfrac%7B5%7D%7B2%7D%28r%5E3%29%20%5C%5C%20%5C%5C%20r%5E3%3D%5Cfrac%7B2%28540%29%7D%7B5%7D%20%5C%5C%20%5C%5C%20r%5E3%3D216%20%5C%5C%20%5C%5C%20r%3D%5Csqrt%5B3%5D%7B216%7D%20%5C%5C%20%5C%5C%20%5Cboxed%7Br%3D6%7D)
<h2>2. SECOND QUESTION.</h2>
M is directly proportional to 
We know that when 
, hence the constant of proportionality is:
So:
<h3>PART A)</h3>
When 
, then:
<h3>PART B)</h3>
When 
, then:
