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kvv77 [185]
3 years ago
7

A set of average city temperatures in october are normally distributed with a mean of 20.6°C and a standard deviation of 2°C. wh

at proportion of temperatures are between 18°C and 20.6°C?
Mathematics
1 answer:
vova2212 [387]3 years ago
8 0

Answer:

0.4032

Step-by-step explanation:

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Theresa Morgan, a chemist, has a 30% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each sh
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Let x represent the number of liters of 50% acid Theresa puts into the mix. The the number of liters of 30% acid will be (420-x). The total amount of acid in the final solution will be ...
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Theresa should mix ...
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