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irakobra [83]
3 years ago
10

Which is a perfect square?

Mathematics
1 answer:
velikii [3]3 years ago
4 0

Answer:

6 squared

Step-by-step explanation:

The square root of a perfect square is a rational number.

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The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mea
zheka24 [161]

Answer:

$301 - $397

Step-by-step explanation:

Using the Empirical rule

1) 68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ .

2)95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .

3)99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ .

From the above question,

Mean = 349 , standard deviation = 24.

Confidence interval = 95%

Using 2)95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .

μ – 2σ

= 349 - 2(24)

= 349 - 48

= 301

μ + 2σ

349 + 2(24)

= 349 + 48

= 397

Therefore, according to the standard deviation rule, approximately 95% of the students spent between $301 and $397 on textbooks in a semester.

8 0
3 years ago
76.
ANTONII [103]

Answer:

It would be 15,00 overpriced

Step-by-step explanation:

8 0
3 years ago
This figure represents a ramp for a dollhouse that is being covered with fabric on all sides. How much fabric is needed to cover
astra-53 [7]

Answer: 144 cm^2

Step-by-step explanation:

i did the quiz

4 0
1 year ago
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How would you reduce the square root of 12. <br><br> Full sentence
Liula [17]

Answer:

3.4

Step-by-step explanation:

I think that you mean "How do you estimate the square root of 12."

1. √12 is between √9 and √16, which are 3 and 4

2. We know that the square root of 12 is between 3 and 4, and we can estimate to the tenth, getting 3.4

5 0
3 years ago
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Write the sum using summation notation assuming the suggested pattern continues<br> 9-18+36-72
IgorC [24]
I think it is 45 sorry if its wrong
5 0
3 years ago
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