Answer:
26
Step-by-step explanation:
Firstly, plot the points on graph paper which you can find on the internet. The first number in the ordered pair, (the ones in parenthesis), is the x coordinate. The other number is the y coordinate. Put these onto a graph which is attached. The perimeter is 26.
Answer:
8978 grams
Step-by-step explanation:
The equation to find the half-life is:
![N(t)= N_{0}e^{-kt}](https://tex.z-dn.net/?f=N%28t%29%3D%20N_%7B0%7De%5E%7B-kt%7D)
N(t) = amount after the time <em>t</em>
= initial amount of substance
t = time
It is known that after a half-life there will be twice less of a substance than what it intially was. So, we can get a simplified equation that looks like this, in terms of half-lives.
or more simply ![N(t)= N_{0}(\frac{1}{2})^{\frac{1}{t_{h} } }](https://tex.z-dn.net/?f=N%28t%29%3D%20N_%7B0%7D%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7B%5Cfrac%7B1%7D%7Bt_%7Bh%7D%20%7D%20%7D)
= time of the half-life
We know that
= 35,912, t = 14,680, and
=7,340
Plug these into the equation:
![N(t) = 35912(\frac{1}{2})^{\frac{14680}{7340} }](https://tex.z-dn.net/?f=N%28t%29%20%3D%2035912%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7B%5Cfrac%7B14680%7D%7B7340%7D%20%7D)
Using a calculator we get:
N(t) = 8978
Therefore, after 14,680 years 8,978 grams of thorium will be left.
Hope this helps!! Ask questions if you need!!
Question 4 is Choice A
Question 5 is Choice B
Question 6 is Choice C
Question 7 is Choice B
These are relatively simple it’s just understanding the relations of x and y values :)
Given that f(x) is a function that represents number of hours required to travel, the domain of the function is: distance travelled in miles (x)
<em><u>Recall:</u></em>
- In a relation that is a function, the domain of the function is the set of input values (x-values).
- The range of the function is the set of output values (y-values or f(x)).
Thus, given that f(x) is a function that represents number of hours required to travel, therefore:
- x = input values (domain) = distance travelled in miles
- f(x) = output values (range) = number of hours.
Learn more about domain of a function on:
brainly.com/question/10197594