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Ymorist [56]
3 years ago
5

Is the domain {1.8,3.4,9,9.8}

Mathematics
1 answer:
Effectus [21]3 years ago
4 0
You need to find the values of x that correspond to the given values of f(x). That is, you need to solve for x:
.. y = 7x -2.7
.. y +2.7 = 7x
.. x = (y +2.7)/7

You are given y values of {14.1, 30.9, 41.4, 58.9, 68}. The corresponding x values are {2.4, 4.8, 6.3, 8.8, 10.1}, corresponding to selection C.

_____
Since the first number in each choice is different, you only need to evaluate f(x) for those numbers to see which gives the correct result. Only the 3rd one (2.4) give f(2.4) = 14.1, the correct answer.

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2/3(x-2)=-2<br>how would I solve this ​
xeze [42]

Answer:

x =(5/3)

Step-by-step explanation:

The given expression is \frac{2}{3(x-2)}  = -2

Now to simplify it,

The first step is to cross multiply.

So, the expression becomes

\frac{2}{(-2)}  = 3(x-2)

or, -1  = 3x - 6

⇒  3x = -1 + 6

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Step-by-step explanation:

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