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Mariulka [41]
3 years ago
15

A solid cylinder of radius 7cm is 10cm long.find it's total surface area

Mathematics
2 answers:
Anton [14]3 years ago
7 0

Answer:

C.  238π  cm^3.

Step-by-step explanation:

Surface area = 2 * area of the circular ends + area of the curved length

= 2π r^2 + 2π r* l

= 2 π 7^2 + 2π 7 * 10

= 98π + 140π

= 238π  cm^3.

Talja [164]3 years ago
6 0

Answer:

c. 238πcm3

Step-by-step explanation:

Total surface area =

2pirh + 2pir^2

Given radius r = 7cm and

Height h = 10cm

Total surface area = 2 x pi x 7 x 10 + 2 x pi x (7)^2

140pi + 2 x pi x 49

140pi + 98pi

238pi cm^3

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Answer:

Step-by-step explanation:

emily : 16 + 22x....with x being the number of days

Lily : 24 + 18x

16 + 22x = 24 + 18x

22x - 18x = 24 - 16

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2 years ago
Find z if X=27, μ=20, and α=3.4. Round to the nearest hundredth if necessary.
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Answer:

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Step-by-step explanation:

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The correct answer is A.

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3 years ago
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Answer:

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Step-by-step explanation:

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