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Anastaziya [24]
4 years ago
14

The value 14 is an extraneous solution, so the equation has no real solutions. Complete the sentence below. You can tell that th

e equation has no real solutions from the second line, because taking the square root results in the root only.
Mathematics
2 answers:
rewona [7]4 years ago
8 0

Principal, positive                          

Ierofanga [76]4 years ago
5 0

Answer:

Positive

or you could use

Principal

* the previous question was 14

Step-by-step explanation:

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The formula for the volume of a sphere is a power function:
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Answer:

r≥0

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Step-by-step explanation:

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The domain is the input values for r

The radius cannot be less than 0  but can be any number bigger than 0

What is the domain of the function in this situation?

r≥0

The range is the output values for the function or the volume

The volume must be greater than or equal to zero

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Answer:

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Sam practices his guitar for 9 hours each week he practices each song for 3 1/2 hours. What is the greatest number of song he ca
liberstina [14]

Answer:

<em>The greatest number of song he can practice in a week is  2.</em>

Step-by-step explanation:

Suppose, the greatest number of song he can practice in a week is  x

He practices each song for 3\frac{1}{2} hours. So, the total time required for practicing x number of songs = (3\frac{1}{2}*x) hours.

Given that, he practices his guitar for 9 hours each week.

So, the equation will be......

3\frac{1}{2}*x= 9\\ \\ x= 9\div 3\frac{1}{2}\\ \\ x=9\div \frac{7}{2}=9 \times \frac{2}{7}=\frac{18}{7}= 2.571.... \approx 2

<em>(Rounded as the greatest whole number)</em>

Thus, the greatest number of song he can practice in a week is  2.

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