Thank you for posting your question here at brainly. Feel free to ask more questions.
The best and most correct answer among the choices provided by the question is <span>21.3</span>.<span>
</span><span>
Hope my answer would be a great help for you.</span>
Answer:197.8
The formula for a cylinder is 3.14*r^2*h but if you don't round to the nearest tenth the the answer is 197.82034.
Step-by-step explanation:Step one mutiply 3^2=9, Step two mutiply 3.14*
9=28.26, Step three mutiply 28.26*7=197.82.But if you round 197.82034 to the nearest tenth which is moving one decimal place to the right you'll will get 197.8.
Answer:
15.4 gallons .
Step-by-step explanation:
The rate of gas used = 380/14 = 27.14 gallons per gallon.
So for each gallon used you drive 27.14 miles.
So number of gallons used when travelling 418 miles = 418/27.14
= 15.4 gallons .
Answer: ![\bold{\sqrt[8]{2^7} }](https://tex.z-dn.net/?f=%5Cbold%7B%5Csqrt%5B8%5D%7B2%5E7%7D%20%7D)
<u>Step-by-step explanation:</u>
![\sqrt[4]{2} \times \sqrt[8]{2} \times \sqrt[2]{2}\\\\={2^{\frac{1}{4}}\times 2^{\frac{1}{8}}\times 2^{\frac{1}{2}}\\\\=2^{\frac{1}{4}+\frac{1}{8}+\frac{1}{2}}\\\\=2^{\frac{2}{8}+\frac{1}{8}+\frac{4}{8}}\\\\=2^{\frac{7}{8}}\\\\\\=\large\boxed{\sqrt[8]{2^7}}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B2%7D%20%5Ctimes%20%5Csqrt%5B8%5D%7B2%7D%20%5Ctimes%20%5Csqrt%5B2%5D%7B2%7D%5C%5C%5C%5C%3D%7B2%5E%7B%5Cfrac%7B1%7D%7B4%7D%7D%5Ctimes%202%5E%7B%5Cfrac%7B1%7D%7B8%7D%7D%5Ctimes%202%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%5C%5C%5C%5C%3D2%5E%7B%5Cfrac%7B1%7D%7B4%7D%2B%5Cfrac%7B1%7D%7B8%7D%2B%5Cfrac%7B1%7D%7B2%7D%7D%5C%5C%5C%5C%3D2%5E%7B%5Cfrac%7B2%7D%7B8%7D%2B%5Cfrac%7B1%7D%7B8%7D%2B%5Cfrac%7B4%7D%7B8%7D%7D%5C%5C%5C%5C%3D2%5E%7B%5Cfrac%7B7%7D%7B8%7D%7D%5C%5C%5C%5C%5C%5C%3D%5Clarge%5Cboxed%7B%5Csqrt%5B8%5D%7B2%5E7%7D%7D)