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sergey [27]
3 years ago
14

Find the surface area of the square pyramid shown below.

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

12

Step-by-step explanation:

6+6=12

3x4=12

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One Year, the price of wheat was $8.87 per bushel. The next year, the price was $9.60. Round the price per bushel of wheat for e
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Answer : 0.0129

Step-by-step explanation:

Given : Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is \mu=13.4 years and standard deviation is \sigma=1.7 years.

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Let X be the random variable that represents the age of fleets.

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For z-score,

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

For x=14

z=\dfrac{14-13.4}{\dfrac{1.7}{\sqrt{40}}}\approx2.23

By using the standard normal distribution table , the probability that the average age of these 40 airplanes is at least 14 years old will be :-

P(x\geq 14)=P(z\geq2.23)\\\\=1-P(z

Hence, the required probability = 0.0129

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3 years ago
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Computer purchases: Out of 809 large purchases made at a computer retailer, 347 were personal computers, 398 were laptop compute
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Step-by-step explanation:

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