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Mathematics

1 answer:

Fittoniya [83]3 years ago

3 0

You may recall that you can't take the square root of a negative number (if you want a real number). So, the area under the square root, also known as the radicand, must be zero or positive. This is how we restrict the domain.

We write the inequality
$x+6 \geq 0 \\ \\ \\ x \geq -6$ .

B

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klio [65]

Answer:

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mezya [45]

Wilda can do the job in 4 hours ... she does 1/4 (or 0.25) of it each hour.
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