A company is going to make a water tank in the shape of a cylinder. As shown below, the tank will have a height of 5 ft and a diameter of 12 ft. The tank will be made from metal (including its top and bottom). If the metal costs $21 for each square foot, how much will th
metal cost in total? Use 3.14 for it, and do not round your answer.

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Ответ:

GabbiL

27.06.2021

Mathematics

Equation :

(x+1)^2 + (y + 4)^2 = 9

Step-by-step explanation:

Radius of the circle is the distance between ( -1 , -4 ) and ( -1 , -1)

$radius ,r = \sqrt{(-1 -- 1)^2 + (-1 --4)^2} }= \sqrt{0+9} = 9$

Centre (h , k ) = ( -1 , -4 )

Equation of circle :

(x-h)^2 + (y - k)^2 = r^2

$(x+1)^2 + (y + 4)^2 = 3^2\\\\(x+1)^2 + (y + 4)^2 = 9\\\\$

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