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Alinara [238K]
3 years ago
5

Which of the following is equivalent to (n-3)(n-5) a. n2-8n+15, b. n2+8n-15, c. n2-15n+8

Mathematics
1 answer:
solong [7]3 years ago
5 0
Foil the binomials

First: n*n=n^2
Outer: n*-5=-5n
Inner: -3*n=-3n
Last: -3*-5=15

Put it together and simplify
n^2-5n-3n+15
n^2-8n+15

Final answer: A
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Simplifying your answer
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Answer:

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Step-by-step explanation:

In order to fill in the given expression, we need to know ...

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Then the expression is ...

  √(5 -(-4)) -(-7)² +7÷(-7)·(3) = √9 -49 +7/(-7)(3)

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7 0
2 years ago
A sound wave travels through iron at a rate of 5120\,\dfrac{\text{m}}{\text{s}}5120 s m ​ 5120, start fraction, start text, m, e
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Answer:

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Step-by-step explanation:

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We know that

1 km = 1000 m

1 hour = 60 minutes

1 minutes = 60 second

Using these conversions we get

1 m = 0.001 km

1 hour  = 3600 second

5120\text{ m/s }=5120\times 0.001\times 3600\text{ km/h}

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Therefore, the sound wave travels through iron at a rate of 18432 km/h.

6 0
3 years ago
The manager of a department store uses the given function to model the monthly opening inventory of down comforters at the store
tangare [24]

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To rewrite this hat reveals the store's opening inventory of down comforters in the month of September, multiply -750 on the bracket, we get

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6 0
2 years ago
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The opposite sides are equal in length.

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8 0
1 year ago
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