3 years ago

Perfect square trinomial:

1 answer:

Alina [70]3 years ago

6 0

Answer:

See work below.

Step-by-step explanation:

$(k-9)^2=(k-9)(k-9)\\=k^2-2(k)(9)+9^2\\=k^2-18k+81$

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marshall27 [118]

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IRINA_888 [86]

[tex] 3(x + 5) - 2(x + 2) = 20 \\
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Reptile [31]

Answer: number of adults = 3, number of children = 5

Step-by-step explanation:

let the number of adults be x, and the number of children be y.

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alexira [117]

Answer:

equilateral

Step-by-step explanation:

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