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3 years ago

PLEASE HELP ASAP! THANK YOU LOTS! <3

Mathematics

2 answers:

den301095 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

12 divided by 3 is 4 and 30 divided by 3 is 10

amid [387]3 years ago

4 0

30 cm on the smaller figure corresponds to 12 meters on the larger figure.

We can write the ratio 30 cm : 12 m

If we divide both parts by the GCF 6 then,

30/6 = 5

12/6 = 2

This means the ratio 30 cm : 12 m reduces to 5 cm : 2 m

Telling us "2 meters on the real house correspond to 5 cm on the doll house"

<h3>Answer: Choice B. 5 cm : 2 m</h3>

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Step-by-step explanation:

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2 years ago

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Read 2 more answers

The brain volumes ?( cm cubed cm3?) of 20 brains have a mean of 1083.9 1083.9 cm cubed cm3 and a standard deviation of 122.2 122

Colt1911 [192]

Answer:

Range: (844.9,1333.7)

A brain volume of 1348.3 cm cubed can be considered significantly high.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 1083.9 cm cubed

Standard Deviation, σ = 122.2 cm cubed

Range rule thumb:

This rule state that the the range of data is four times the standard deviation of the data.

$\text{Range} = 4\times \sigma = 4\times 122.2 = 488.8$

Upper Limit:

$\mu + 2\sigma = 1089.3 + 2(122.2) = 1333.7$

Lower limit:

$\mu - 2\sigma = 1089.3 - 2(122.2) = 844.9$

Since, 1348.3 does not lie in the range (844.9,1333.7), a brain volume of 1348.3 cm cubed can be considered significantly high.

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3 years ago

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vovikov84 [41]

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Step-by-step explanation:

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