kimarley816

11.03.2020 • 

Mathematics

The Louvre is a large museum in Paris, France. In fact, it is one of the largest museums in the world! Opened to the public in 1793, the Louvre houses many famous pieces of art, including the Mona Lisa. In 1989, the entrance of the Louvre was adorned with a massive pyramid, whose sides are constructed of glass inside a metal frame, as shown in the picture below. The base of the pyramid is a square, with edges of 35 meters. The height of each lateral face is approximately 27.8 meters. How much glass was needed to construct the sides of the pyramid?

A.) 1,946 square meters
B.) 1,459.5 square meters
C.) 3,892 square meters
D.) 2,919 square meters

20 points!

Ответ:

EmilySerna

20.01.2022

Mathematics

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D.) 2,919 square meters

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Step-by-step explanation:

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Ответ:

rwlockwood1

06.05.2021

Mathematics

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68.65%

Step-by-step explanation:

Given : Paula Pidcoe discovers that the average miscellaneous expense is $65.00 with a standard deviation of $18.00.

i.e. and

We assume that the miscellaneous expenses follows normal distribution.

Let x denotes the miscellaneous expenses .

Then, the probability that  her expenses fall between $54.20 and $86.60 will be :

Hence, she would expect 68.65% of her expenses in this category to fall between $54.20 and $86.60 .

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