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3 years ago

7

Find the value of A and B what theorem did you use

2 answers:

barxatty [35]3 years ago

7 0

Answer:

Step-by-step explanation:

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balandron [24]3 years ago

4 0

Answer:

Show a picture so I can help

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For a random sample of 50 measurements on the breaking strength of cotton threads, the mean breaking strength was found to be 21

Vikentia [17]

Answer:

205.81 to 214.19

Step-by-step explanation:

Sample size (n) = 50

Sample mean weight (X) = 210 grams

Sample standard deviation (s) = 18 grams

Confidence coefficient (Z) at 90% = 1.645

The confidence interval for the true mean breaking strength of cotton threads of this type, at a 90% confidence level, is given by:

$CI=X \pm Z*\frac{s}{\sqrt n}\\CI=210 \pm 1.645*\frac{18}{\sqrt 50}\\CI = 210 \pm 4.19\\CI =205.81\ to\ 214.19$

The confidence interval is 205.81 grams to 214.19 grams.

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3 years ago

Use the following for the next two questions. A large company is interested in investing in software designed to allow a compute

Dmitriy789 [7]

the answer is 66.43

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8 0

3 years ago

Plz fast I need it<br>plz plz plz<br>

GarryVolchara [31]

Answer:

PQ = 1/2BC

Step-by-step explanation:

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3 years ago

A pizza shop sold 150 pizzas the first week, 300 the second week, and 450 the third week. If this same pattern continues, how ma

damaskus [11]

Answer:

1,200

Step-by-step explanation:

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3 years ago

BRAINLY FOR CORRECT ANSWER! YOU MUST GIVE ME AN ANSWER NOT AN EQUATION.

Nadusha1986 [10]

The answer is 310.93, rounded to the nearest hundredth. Hope this helps!

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3 years ago