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Mathematics

1 answer:

TiliK225 [7]2 years ago

5 0

Answer:

Step-by-step explanation:

W^7/W^-2=W^7+2=W^9 ( when divide subtract the exponent (7-(-2))

W^?/W² = W^?-2

W^9=W^(?-2)

9=?-2

?=11

W^7/W^-2 = W^11/W²

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Someone please answer<br> 2.1 ( x + 5 ) = 7

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Read 2 more answers

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Mean weight of the bag of pears = u = 8 pounds
Standard deviation = s = 0.5 pounds

We have to find what percentage of bags of pears will weigh more than 8.25 pounds. This can be done using the z score.

We have to convert x = 8.25 to z scores, which will be:

$z= \frac{x-u}{s}= \frac{8.25-8}{0.5}$

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From the z table, the probability of z score being greater than 0.5 is 0.3085

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2 years ago