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Karolina [17]
3 years ago
5

I need help please no links!

Mathematics
1 answer:
Tamiku [17]3 years ago
7 0

Answer:

It will be 8 meters long.

l =  \sqrt{ {17}^{2}   -  {15}^{2} }  \\ l =  \sqrt{64}  \\ l = 8 \: m

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What are two decimals that are equivalent to 7.7
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The probability of event A is 1/3. The probability of event b is 1/4. What can you include about the two events​
Illusion [34]

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Step-by-step explanation:1/4

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3 years ago
A water storage tank has the shape of a cylinder with diameter 14 ft. It is mounted so that the circular cross-sections are vert
andrezito [222]

Answer:

percentage of the total capacity is 75.6%

Step-by-step explanation:

Hello! To solve this problem we follow the following steps

1. draw the complete scheme of the problem (see attached image)

2. To solve this problem we must find the area of ​​the circular sector using the following equation.(c in the second attached image)

A=\frac{R^2}{2} (\alpha -sin\alpha )

\alpha =2arccos(\frac{d}{R})

3. observing the attached images we replace the values ​​in the equations and find the area of ​​the circular sector, remember that you must transform the angle to radians

\alpha =2arccos(\frac{5}{7})=88.83

A=\frac{R^2}{2} (\alpha -sin\alpha )\\A=\frac{7^2}{2} (88.83-sen88.83)*\frac{\pi rad}{180} =37.57ft^2

4.we calculate the area of ​​the total circle (At), then subtract the area of ​​the circular sector (Ac) to find the area occupied by water (Aw)

At=\frac{\pi }{4} (14ft)^2=153.93ft^2

Aw=At-Ac=153.93-37.57=116.36ft^2

5.Finally, we calculate the percentage that represents the water in the tank by dividing the area of ​​the water over the total area of ​​the tank

\frac{116.36}{153.93} *100=75.6

percentage of the total capacity is 75.6%

3 0
3 years ago
What Does 9/12 equal to?
sveticcg [70]
3/4 = or .75
Divide the numerator and denominator to reduce the fraction.
5 0
3 years ago
Read 2 more answers
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