Find the first five terms of the sequence in which a1 = –10 and an = 4an – 1 + 7, if n ≥ 2.
1 answer:
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Answer:
21 cm
Step-by-step explanation:
Volume of cone is given by
volume of cylinder is given by
where r is the radius of base and h is the height
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For cone
radius = 42cm
height = 84
volume = (1)
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For cone
radius = to find let it be r
height =112
volume = (2)
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since , volume of both solid are same
thus, equation 1 = equation 2
Thus, radius of cylinder is 21 cm