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3241004551 [841]
4 years ago
9

Factor: x^2 - 81

alt=" {x}^{2} - 81" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
beks73 [17]4 years ago
7 0
(x - 9)(x + 9) is your answer. This is called a difference of two squares. 
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In a school, 30% of the students arrived by private car, 15 travel by taxi and the remainder walk to school. If the school has a
Yuliya22 [10]

Answer:

57.5 students

Step-by-step explanation:

Given that

The 30% students would be arrived by private car

So 15% would be travelled by taxi

And, the remaining i.e. 55% would be walk to school

Since the population of the school is 230

So by car, the students would be

= 230 × 0.30

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By walk, the students would be

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Ivenika [448]

Answer:

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guapka [62]

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Answer:

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Step-by-step explanation:

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