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Stolb23 [73]
2 years ago
11

Easy 20 PTS PTS PTS PTS

Mathematics
1 answer:
Serhud [2]2 years ago
7 0

Answer:

Step-by-step explanation:

The trouble maker is √(x - 3).

If you try and put in (say) - 1 for x, what happens is that you are taking the square root of -1 - 3 = - 4. At this level of math, you can't take the square root of a number < 3. So that modified is what you put in the blank.

The domain for f(x) is all the real numbers larger than or equal to 3.

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A designer wants to create a whisper chamber in the shape of an ellipse. He has a warehouse space with a longest length of 50 ya
Zanzabum

Answer:

22.9 yards

Step-by-step explanation:

Since b² = a² - c² where a = vertex of major axis, 2a = 50 yards the length of the major axis. So , a = 50/2 = 25 yards. c = focus of chamber = 10 yards from center and b = vertex of minor axis.

So, b = ±√(a² - c²)

= ±√(25² - 10²)

= ±√(625 - 100)

= ±√525

= ±22.91 yards

≅ ± 22.9 yards

Since b = length of minor axis from center of chamber = 22.91 yards. So, he should build the whisper chamber 22.9 yards out from the center of the chamber.

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3 years ago
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<span><span><span><span>g<span>t2</span></span>2</span>=2g</span><span><span><span>g<span>t2</span></span>2</span>=2g</span></span><span> or 19.9m.</span>
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Help. Do not take advantage of the points, please.
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Answer:

?

Step-by-step explanation:

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Step-by-step explanation:

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