Step-by-step explanation:
![- 6 \div \frac{3}{7x} \\ \\ = - 6 \times \frac{7x}{3} \\ \\ = - 2 \times 7x \\ \\ = - 14x](https://tex.z-dn.net/?f=%20-%206%20%20%5Cdiv%20%20%20%5Cfrac%7B3%7D%7B7x%7D%20%20%5C%5C%20%20%5C%5C%20%20%3D%20%20-%206%20%5Ctimes%20%20%5Cfrac%7B7x%7D%7B3%7D%20%20%5C%5C%20%20%5C%5C%20%20%3D%20%20-%202%20%5Ctimes%207x%20%5C%5C%20%20%5C%5C%20%20%3D%20%20-%2014x)
Answer:
for 24 and 72 its 24 for 16 and 18 it is 2
Step-by-step explanation:
Answer:
Domain: ![-2\leq x\leq 2](https://tex.z-dn.net/?f=-2%5Cleq%20x%5Cleq%202)
Range: ![0\leq y\leq 4](https://tex.z-dn.net/?f=0%5Cleq%20y%5Cleq%204)
Step-by-step explanation:
The domain of a function is the set of values that one can input into a function and get a valid result.
The range of a function is the set of valid outputs that one can attain when a value is substituted into a function.
From the given information, a exists jointly proportional to b and c.
then ![$$a \propto b c$](https://tex.z-dn.net/?f=%24%24a%20%5Cpropto%20b%20c%24)
Therefore, the value of a exists 2.
<h3>
What is the value of a?</h3>
Given, a exists jointly proportional to b and c.
![$$a \propto b c$](https://tex.z-dn.net/?f=%24%24a%20%5Cpropto%20b%20c%24)
Taking K as the constant of proportionality.
a = K b c
For b = 8 and c = 9, the value of a = 4
4 = K(8)(9)
4 = 72 K
Dividing the equation by 72, we get
![$K=\frac{1}{18}](https://tex.z-dn.net/?f=%24K%3D%5Cfrac%7B1%7D%7B18%7D)
Using the value of K in the equation:
![$a=\frac{b c}{18}](https://tex.z-dn.net/?f=%24a%3D%5Cfrac%7Bb%20c%7D%7B18%7D)
Substitute the values of b = 2 and c = 18, in the above equation
![$a=\frac{2 \times 18}{18} \\](https://tex.z-dn.net/?f=%24a%3D%5Cfrac%7B2%20%5Ctimes%2018%7D%7B18%7D%20%5C%5C)
a = 2
Therefore, the value of a exists 2.
To learn more the value of x refers to:
brainly.com/question/11874663
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