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xz_007 [3.2K]
3 years ago
9

The steps below show the incomplete solution to find the value of y for the equation 6y − 3y − 5 = −3 + 23:

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
6 0

Answer with Step-by-step explanation:

We have to find the value of y for the equation:

6y − 3y − 5 = −3 + 23:

Step 1: 6y − 3y − 5 = −3 + 23

Solving the right hand side of the equation gives Step 2

Step 2: 6y − 3y − 5 = 20

combining the terms of y on left hand side gives step 3

Step 3: 3y − 5 = 20

Now, Adding 5 on both sides, we get

3y-5+5=20+5

⇒ 3y=25

Hence, most likely the next step is:

3y=25

jeka943 years ago
4 0
3y=25

final answer y=25/3
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F(x)= √x-5. find f-2
rodikova [14]

For this case we have:

Be a function of the form y = f (x)

Where:

f (x) = \sqrt {x-5}

If we want to find f (-2), we substitute x = -2, then:

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Since we have a negative root, the result will be given by complex numbers. By definition:

\sqrt {-1} = i

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f (-2) = \sqrt {7} i

Answer:

f (-2) = \sqrt {7} i


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Step-by-step explanation:

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