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DIA [1.3K]
2 years ago
15

3. What are the factors of 9x2 - 30x + 25?

Mathematics
1 answer:
vaieri [72.5K]2 years ago
4 0

{(3x)}^{2}-2(3x)(5)+{5}^{2}

−2(3x)(5)+5

2

{(3x-5)}^{2}

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Answer:

  See attached for a graph

Step-by-step explanation:

We're going to plot sea level as y=0 and a depth of 8 meters as y=-8.

The problem statement tells you the initial point (x=0) is at normal ocean depth (y=-8), so the first point you put into your sine tool is ...

  (x, y) = (0, -8)

The buoy takes 16 seconds to go from a high point to a low point, so the time to the first high point is half that, or x=8 seconds. That high point is 5 meters above its average depth, so is at y=-3.

The second point you will put into your sine tool is ...

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Build your conversion factors using the conversion table:

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From the prefixes used in the metric system, you know that 1 deciliter = 0.100 liters. Then:

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4 0
3 years ago
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JulsSmile [24]

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Step-by-step explanation:

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(can I get brainliest please)

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Write the equation of a circle in standard form with a diameter whose endpoints are
vova2212 [387]
X
x {}^{2}  + y {}^{2}  = r {}^{2}
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