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Olin [163]
3 years ago
14

Which of the following terms can be combined in this expression?

Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Answer:

Option (3) is correct .

We can combine 6.2y with -\frac{3}{8}y  

Step-by-step explanation:

      Consider the given expression -13-\frac{x}{5}+6.2y+20.5x-\frac{3}{8}y  

We have to find the two terms can be combined in this expression.

We can combine those term which have same variable with same degree.

Here, since degree of each variable is 1 and contain two variables x and y.

So we can combine x terms together and y terms together as ,

-13-\frac{x}{5}+6.2y+20.5x-\frac{3}{8}y=-13+(-\frac{1}{5}+20.5)x+(6.2-\frac{3}{8})y  

Thus, option (3) is correct .

We can combine 6.2y with -\frac{3}{8}y  

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Find a formula for the inverse of the function. f(x) = e^6x − 9
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Answer:

f^{-1}(x)=\frac{1}{6}\ln(x+9)

Step-by-step explanation:

So we have the function:

f(x)=e^{6x}-9

To solve for the inverse of a function, change f(x) and x, change the f(x) to f⁻¹(x), and solve for it. Therefore:

x=e^{6f^{-1}(x)}-9

Add 9 to both sides:

x+9=e^{6f^{-1}(x)}

Take the natural log of both sides:

\ln(x+9)=\ln(e^{6f^{-1}(x)})

The right side cancels:

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Divide both sides by 6:

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Answer:

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