The firs t res is x=4
the second is D
Answer:
17
Step-by-step explanation:
fug hr rn htghttthhuyyyyyyyyygggyt
just use FOIL (First, Outer, Inner, Last).
( √2 - √3 ) X ( √2 - √3 )
First: √2 X √2 = 2
Outer: √2 X -√3 = -√6
Inner: -√3 X √2 = -√6
Last: -√3 X -√3 = 3
and then add them together.
2 - √6 - √6 + 3
5 - 2(√6)
The answer is 5 - 2(√6) .
Volume of water will it take to fill in the well is 4710 cubic feet
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Solution:</u></h3>
Given that a cylindrical well has a radius of 10 feet
Height of cylindrical well = 15 feet
To find: volume of water will it take to fill in the well
Since, the well is in the form of cylinder, This means that we need to find the volume of cylindrical well
<em><u>The volume of cylinder is given as:</u></em>
![\text { Volume of water in the well }=\pi r^{2} h](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Volume%20of%20water%20in%20the%20well%20%7D%3D%5Cpi%20r%5E%7B2%7D%20h)
Where "r" is the radius and "h" is the height of cylinder
Substituting the given values we get,
![\begin{array}{l}{\text { Volume of water in the well }=(3.14) \times(10)^{2} \times(15)} \\\\ {=(3.14) \times(1500)=4710}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bl%7D%7B%5Ctext%20%7B%20Volume%20of%20water%20in%20the%20well%20%7D%3D%283.14%29%20%5Ctimes%2810%29%5E%7B2%7D%20%5Ctimes%2815%29%7D%20%5C%5C%5C%5C%20%7B%3D%283.14%29%20%5Ctimes%281500%29%3D4710%7D%5Cend%7Barray%7D)
![\text { Volume of water in the well }=4710 \text { feet }^{3}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Volume%20of%20water%20in%20the%20well%20%7D%3D4710%20%5Ctext%20%7B%20feet%20%7D%5E%7B3%7D)
Hence, the amount of water that can be stored in the well is 4710 cubic feet
Answer:
i think the 2nd one
Step-by-step explanation: