4 years ago

How do you write 1,000,000 in expanded form

Mathematics

2 answers:

Rufina [12.5K]4 years ago

5 0

1,000,000,000+ 0+0+0+0+0+0

Semenov [28]4 years ago

3 0

1,000,000 becase you dont need to add all the other zeros

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How I do this someone ples help I need help with 25 and 27.

marta [7]

Number 15 is no solution.

Number 27 is that x has to be between -2 or 2.

This could be explained as -2≤x≤2

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3 years ago

Which of the following is a proportion?<br> 3/4=12/15<br> 8/10=6/8<br> 6/9=8/12<br> 4/6=9/12

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The answer is 6/9 =8/12 i think bro

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A bus departed from New York at 11 pm with 44 passengers. An hour later, a few passengers got off at New Jersey. The number of p

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Answer:

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Step-by-step explanation:

let the number of passengers who got off be x and let the number of passengers who boarded the bus be y

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3 years ago

In Mary's first math test she scored 87%. The mean and standard deviation for the class were 71% and 18% respectively. In her se

erica [24]

Answer:

Step-by-step explanation:

Since your population are the students in math class, you can use the z-score formula $z=(x-\mu)/\sigma$ in order to comparing the two math test scores. Where $\mu$ is the mean for the class, $\sigma$ is the standars deviation and x is Mary score.

For the first test $\mu=.71 , \sigma=.18,x=.87$ , so , $z_{1} = (.87-.71)/(.18)=.88$ .

For the second test $\mu=.53 , \sigma=.14,x=.66$ , so , $z_{1} = (.66-.53)/(.14)=.93$

Mary do better in the second test, relative to the rest of the class (because $.88 \leq .93$ , it means the second score is nearer to the mean score of the class than the first one )

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Jejehrhehekjejrbehjehrbebe

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Answer:

What??????????????

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3 years ago

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