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jeka57 [31]
1 year ago
6

Express (x+9)^2 as a trinomial in standard form.

Mathematics
2 answers:
slava [35]1 year ago
7 0

(x+9)^2\\\\=x^2 + 2\cdot 9 \cdot x + 9^2\\\\=x^2 +18x+81

Andreyy891 year ago
5 0

Answer:

x^2 + 18x + 81

Step-by-step explanation:

(x+9) (x+9)

then distributive property

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Answer:

PD = 8

Step-by-step explanation:

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2 years ago
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The answer should be 24 square units.

5 is the hypotenuse and the one we need is the base and the height. They gave us the height, which was 6 in total but 3 for the triangle. But we needed to find the base.

In order to do that, we need to use the Pythagorean Theorem.

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Now that we have the base, you can then find the area of the triangle.

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3 years ago
A line passes through the point (-4,-8) and has a slope of -5/2.
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Estimate the isoelectric point of a ser–his dipeptide. explain why this value is only an estimate.
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Histidine: pI = 7.59

Average pI = (5.68 + 7.59)/2 =<em> 6.635

</em>
<em />This is only a rough estimate because an arithmetic average will not coincide with the biochemistry of the amino acids. The true value of the isolectric point is determined through experimentation. However, it would be more ore less around 6.635.<em>
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Answer:

Stewhapt

rectangles-by-step explanation:

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