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denpristay [2]
3 years ago
10

I WILL GIVE YOU BRAINLIEST FOR THE CORRECT ANSWER WITH AN EXPLANATION!

Mathematics
1 answer:
Allisa [31]3 years ago
5 0
The second pair because the ratios between the sides are equal
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42

Step-by-step explanation:

42 is the answer

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Please help!! giving brainlest , please be serious. due in a few minutes thanks!
Margaret [11]

The answer is -7

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3 years ago
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a study studied the birth weights of 1,999 babies born in the United States. The mean weight was 3234 grams with a standard devi
Aleks [24]

Answer:

1899

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 3234

Standard deviation = 871

Percentage of newborns who weighed between 1492 grams and 4976 grams:

1492 = 3234 - 2*871

So 1492 is two standard deviations below the mean.

4976 = 3234 + 2*871

So 4976 is two standard deviations above the mean.

By the Empirical Rule, 95% of newborns weighed between 1492 grams and 4976 grams.

Out of 1999:

0.95*1999 = 1899

So the answer is 1899

8 0
3 years ago
Please solve and show step by step<br> Best answer get rewarded!
Arisa [49]
B² - 4ac
= 8² - 4*(-2)*(-9)
= 64 - 72
= -8
6 0
3 years ago
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