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yKpoI14uk [10]
2 years ago
12

Help y’all

Mathematics
2 answers:
Cloud [144]2 years ago
6 0

Answer:

DID YOU GET AN ANSWER???

Step-by-step explanation:

plz tell me what is was

Ugo [173]2 years ago
4 0

Answer:

The answer is 201

Step-by-step explanation:

the equation used is (b-a)/2=?

To get the answer, we plug in the info we have which is

a=61

?=70

we use inverse operation to get b

(b-61)/2=70

b-61=140

b=201

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3 years ago
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6 0
3 years ago
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4 0
3 years ago
The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution w
lilavasa [31]

Answer:

Given that the manufacturers claim is true, the probability that the sample mean area is 249.6 ft.² or less is 0.42074

Step-by-step explanation:

The manufacturer claims that mean amount of foil on each roll, μ = 250 ft²

The standard deviation of the measured amount of foil per roll, σ = 2 ft.²

The number of rolls tested by the restaurant, n = 10 rolls

The mean measured by the restaurant, \overline x = 249.6

Taking the sample means as individual score, we have;

The z-score, of the sample mean is given as follows;

z=\dfrac{\overline x -\mu }{\sigma }

At \overline x = 249.6, we have;

z = (249.6 - 250)/2 = -0.2

Therefore, the probability for a mean less than or equal to 249.6, we have;

The probability, P = P(z < -0.2) = 0.42074

The probability that the sample mean area is 249.6 ft.² or less given that the manufacturers claim is true, P = 0.42074.

7 0
3 years ago
Help on this question.....
HACTEHA [7]

Answer:

25

Step-by-step explanation:

17 / 0.68 = 25

check your answer?

25 * 0.68 = 17

:)

3 0
2 years ago
Read 2 more answers
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