3 years ago

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Mathematics

1 answer:

qwelly [4]3 years ago

5 0

Answer:

Uh what are you saying?

Step-by-step explanation:

Thanks for the points btw

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The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is

solmaris [256]

Answer:

Step-by-step explanation:

Given the confidence interval of the heights of american heights given as (65.3,73.7);

Lower confidence interval L = 65.3 and Upper confidence interval U = 73.7

Sample mean will be the average of both confidence interval . This is expressed mathematically as $\overline x = \frac{L+U}{2}$

$\overline x = \frac{65.3+73.7}{2}\\\overline x = \frac{139}{2}\\\overline x = 69.5$

Hence, the sample mean is 69.5

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3 years ago

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3 years ago

M ozp=4r+2,m pzq=5r-12, and m ozq=125. What are m ozp and m pzq

Gennadij [26K]

Answer: ∠OZP = 62 ∠PZQ = 63

<u>Step-by-step explanation:</u>

Use the Angle Addition Postulate

∠OZP + ∠PZQ = ∠OZQ

(4r + 2) + (5r - 12) = 125

9r - 10 = 125

9r = 135

r = 15

∠OZP = 4r + 2

= 4(15) + 2

= 60 + 2

= 62

∠PZQ = 5r - 12

= 5(15) - 12

= 75 - 12

= 63

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M<1=2x-y<br> m<4=x-y<br> m<8=118

Mrrafil [7]

The second one hoped i helped :D

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Use the unit rate of $2.09 per pound to find the cost of 8.5 pounds of grapes. [Type your answer as a number and round to the ne

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multiply total weight by unit cost

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3 years ago

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