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KonstantinChe [14]
3 years ago
5

Which is the expanded form of 879?

Mathematics
2 answers:
Genrish500 [490]3 years ago
6 0

Answer:

800 + 70 + 9 (See explanation!)

Step-by-step explanation:

Expanded form of a number is another way of writing out what it is. For example: 24 is 20 + 4. Another example: 111 is 100 + 10 + 1. Hopefully you see a pattern here. Now, looking at 879, we see that there is an 8 in the hundreds place, 7 in the tens place, and 9 in the ones place. Once again, we're just trying to represent the number through addition. So the answer is:

879

800 + 70 + 9

Sloan [31]3 years ago
4 0

Answer:

800+70+9 OR 8x100+7x10+9x1

Step-by-step explanation:

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Answer:

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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
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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

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z = 3000 - 2600/660

= 400/660

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