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seraphim [82]
3 years ago
13

Find the inverse of the function. f(x) = 6x3 - 8

Mathematics
1 answer:
Papessa [141]3 years ago
7 0
\bf f(x)=y=6x^3-8\qquad inverse\implies 
\begin{array}{lll}
x=&6y^3-8\\
&\uparrow\\
&\textit{switched variables} 
\end{array}
\\\\\\
x+8=6y^3\implies \cfrac{x+8}{6}=y^3\impliedby taking\ \sqrt[3]{\qquad }
\\\\\\
\sqrt[3]{\cfrac{x+8}{6}}=\sqrt[3]{y^3}\implies \sqrt[3]{\cfrac{x+8}{6}}=y\impliedby f^{-1}(x)
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Answer:

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Step-by-step explanation:

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a box of candy contains 0.6 of pounds of caramels and 3.6 pounds of coconut what precent of the contents of the box
enyata [817]

Answer:

We know that the box has:

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Then the total mass of candy in the box is:

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This is the 100% of the box.

Now, we can write this as:

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For example, if we want to know which percentage is caramels, we write the equation:

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We want to find the value of X

Then we have two equations:

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Let's take the quotient of these two equations:

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Now we can solve this for X:

(0.6lb/4.2lb)*100% = X = 14.3%

the caramels represent the 14.3% of the wheight of the box.

And for the coconut candy, we have the relation:

3.6lb = Y

Now let's do the same again, we start with the two equations:

3.6lb = Y

4.2lb = 100%

Take the quotient:

(3.6lb/4.2lb) = Y/100%

Solve for Y:

(3.6lb/4.2lb)*100% = Y = 85.7%

Now we found the percentage that represent each type of candy in the box.

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