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Vladimir [108]
4 years ago
5

Find the domain of the function.

Mathematics
1 answer:
timurjin [86]4 years ago
5 0

When taking square roots, you can't take square roots of negative roots of negative numbers. So, what will work for the domain of u(x) is what makes u(x) zero or more. We can make an inequality for that.

u(x) ≥ 0.

\sqrt{9x+27} \geq  0

9x + 27 ≥ 0 by squaring both sides

9x ≥ -27

x ≥ -3

So the domain of the function is when x ≥ -3 is true.

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Simplify the expression.
Maksim231197 [3]

Answer:

6.8x - 5

Step-by-step explanation:

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Then you add the 5 to the end of the expression:

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3 years ago
Y raise to power 1/2 =3​
marta [7]

Answer:

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Step-by-step explanation:

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Hope this helps :)

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3 years ago
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29. March sales accounted for 1/7 of the total number of jazz records sold all year. About how many jazz records were sold all y
enot [183]

The March sales of Jazz records is an illustration of proportions, and the number of jazz records sold all year is 7x

<h3>How to determine the total number of sales?</h3>

The sales in March is given as:

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Let the actual number of sales in the month of March be x, and the total sales in the year be y.

So, we have:

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