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Vilka [71]
3 years ago
12

SOMEONE PLEASE DO THIS IM IN MATH CLASS AND I DONT WANT TO GET CALLED ON BC I DONT KNOW THE ANSWER

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

for A multiply each time(hour) by 65 and when the number of hours doesnt have a number by it divide the pages by 65.

Step-by-step explanation:

Example for the first one multiply 65 by 3 , and for the pages divide 585 by the number you got previously from the # of pages. And also the same for B

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The total surface area of a hemisphere is 45<br><img src="https://tex.z-dn.net/?f=%5Cpi%5Cp" id="TexFormula1" title="\pi\p" alt=
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Answer:

The volume of the hemisphere  

       V = 121.33086 cubic centimeter

Step-by-step explanation:

<u>Step(i)</u>:-

Given that the total surface area of a hemisphere = 45π cm²

<em> The total surface area of a hemisphere = 3π r²</em>

Equating

              3π r² = 45π

                   r^{2} = \frac{45}{3} =15

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The radius of the sphere 'r' = 3.87

<u><em>Step(ii):-</em></u>

<em>The volume of the hemisphere</em>

                 V = \frac{2}{3} \pi r^{3}

                V = \frac{2}{3} \pi (3.87)^{3}

we know that   π = 3.14

                V = \frac{2}{3}  (3.14) (3.87)^{3}

               V = 121.33086 cubic centimeter

               

         

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