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avanturin [10]
3 years ago
15

Use the distributive property to write the expression as a product 10+70x

Mathematics
1 answer:
grigory [225]3 years ago
4 0

Answer:

10(1+7x)

Step-by-step explanation:

Just factored out the 10.

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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
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Complete Question

A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?

Answer:

The  margin of error is  E = 0.7

The  sample mean is  \=  x  =  4.2

Step-by-step explanation:

from the question we are told that

   The  upper limit is  k  =  4.9

    The  lower limit is  r = 3.5

Generally the margin of error is mathematically represented as

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Generally the sample mean is mathematically evaluated as

        \=  x = k  -  E

=>    \= x  =  4.9 - 0.7

=>    \=  x  =  4.2

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