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Ostrovityanka [42]
3 years ago
14

The Unisphere is the world's largest man-made globe. It was built as the symbol of the 1964-1965 New York World's Fair. A sphere

with the same diameter as the Unisphere globe would have a surface area of 45,239 square feet. What is the diameter of the Unisphere?
Mathematics
1 answer:
Xelga [282]3 years ago
5 0
\bf \textit{surface area of a sphere}\\\\
A=4\pi r^2\qquad 
\begin{cases}
r=radius=\frac{diameter}{2}\\
diameter=2r\\
----------\\
A=45,239
\end{cases}\implies 45,239=4\pi r^2

solve for "r", to see what the radius is

keep in mind that, the diameter is just "2r"
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MrRissso [65]

<u>Answer:</u>

x = 5.67

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

We are given a right angled triangle with a length of the hypotenuse 8 with the remaining two sides (base and perpendicular) that are equal to each other.

Assuming the two equal legs of this right angled triangle to be x, we can use the Pythagoras Theorem to find the value of x.

(x)^2+(x)^2=(8)^2

2x^2=64

Taking square root at both the sides to get:

\sqrt{2x^2} =\sqrt{64}

1.41x=8\\\\x=5.67

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mihalych1998 [28]
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Veseljchak [2.6K]

Answer:

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Step-by-step explanation:

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3 years ago
Whats the median number mode and mean for 95, 97, 100, 86, 78, 96
Naya [18.7K]

Answer:

Mean = 92

Median = 95.5

There is no mode.

What is mean, median, and mode?

Mean, median, and mode are terms in math when it comes to looking at charts and sets/groups of numbers.

1. The mean is the average of a data set.

2. The median is the middle of a data set.

3. The mode is the most common number in a data set.

Mean is found by adding the numbers and dividing the sum by the number of numbers in the list. This is what is most often meant by an average. The median is the middle value in a list ordered from smallest to largest. The mode is the most frequently occurring value on the list.

Before we start, let's put the set of numbers in order from least to greatest,

95, 97, 100, 86, 78, 96

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Now that we have done that let's find the mean,

78 + 86 + 95 + 96 + 97 + 100 = 552

There are 6 numbers in this set so we need to divide 552 by 6,

552 ÷ 6 = 92

92 is the mean/average of this data set,

Now let's find the median,

If we take a look at the data set we can see that there are two numbers in the middle because there are 6 in total,

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Because there are two values that are in the middle we need to add them up and divide the sum of them by 2,

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191 ÷ 2 = 95.5

95.5 is the median of this data set,

Now let's find the mode,

If we take a look at the date set we can see that none of the numbers are repeated,

So this means there is no mode to this data set,

Therefore the mean is 92, the median is 95.5, and there is no mode.

4 0
2 years ago
Which rule represents the translation presented? please help!
katovenus [111]

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