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Mathematics

1 answer:

Inessa05 [86]3 years ago

3 0

I'm not quite sure but I'd say 1 and 4.

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the number of even integers between 1 and 103 is the same is the same as the number of odd integers between 4 and x. what is the

Ksju [112]

# of numbers between 1 & 103: 102
Half of that would be even numbers. So, 51 even numbers.
Between 4 and x, there are 102 numbers. 4+102=106. 4+106=x. 106=x

7 0

3 years ago

The price of a DVD, including 5% sales tax is $21.15. What us the price of the DVD, before sales tax?

AfilCa [17]

Answer:

20.14

Step-by-step explanation:

21.15 - 5%(1.01) = 20.14

6 0

3 years ago

Viktor [21]

Answer:

no sure about the answer

6 0

2 years ago

All 10,000 California students in the beginning of 8th grade are given an entrance exam that will allow them to attend a top aca

lys-0071 [83]

Answer:

1.32% of students have the chance to attend the charter school.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

This year the mean on the entrance exam was an 82 with a standard deviation of 4.5.

This means that $\mu = 82, \sigma = 4.5$