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sdas [7]
3 years ago
5

X - 5.7 = 6.4 what is x?

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0

Answer:

The chosen topic is not meant for use with this type of problem. Try the examples below.

3x+3=243x+3=24

x2+9=73x2+9=73

x2−10x≤−9

Step-by-step explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

Sonbull [250]3 years ago
4 0

Answer: 12.1

Step-by-step explanation: 6.4+5.7=12.1 to see if your answer is correct all you have to do is 12.1-5.7=6.4

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Step-by-step explanation:

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Step-by-step explanation:

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Birth Weights Babies born after a gestation period of 32-35 weeks have a mean weight of 2600 grams and a standard deviation of 6
lukranit [14]

Answer:

The z-score for the 34-week gestation period baby is 0.61

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean

σ is the population standard deviation.

We are told in the question that:

Babies born after a gestation period of 32-35 weeks have a mean weight of 2600 grams and a standard deviation of 660 grams. Also, we are supposing a 34-week gestation period baby weighs 3000grams

The z-score for the 34-week gestation period baby is calculated as:

z = (x-μ)/σ

x = 3000, μ = 2600 σ = 660

z = 3000 - 2600/660

= 400/660

=0.6060606061

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