Apply the distributive property to create an equivalent expression. 4(x − 2 + y)

Mathematics

2 answers:

vitfil [10]2 years ago

5 0

Step-by-step explanation:

4x-8+4y

blah blah blah blah blah

Setler79 [48]2 years ago

5 0

Answer:

4x-8+4y

Step-by-step explanation:

Hope this is the correct answer.

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Converting 7/8 to a decimal.

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2 years ago

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Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box

pantera1 [17]

To find the z-score for a weight of 196 oz., use

$z=\frac{x-\mu}{\sigma}=\frac{196-180}{8}=\frac{16}{8}=2$

A table for the cumulative distribution function for the normal distribution (see picture) gives the area 0.9772 BELOW the z-score z = 2. Carl is wondering about the percentage of boxes with weights ABOVE z = 2. The total area under the normal curve is 1, so subtract .9772 from 1.0000.

1.0000 - .9772 = 0.0228, so about 2.3% of the boxes will weigh more than 196 oz.