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4vir4ik [10]
3 years ago
9

PLEASE HELP

Mathematics
1 answer:
lukranit [14]3 years ago
3 0

Answer:

Step-by-step explanation:

l = 34 cm

height = 30 cm

radius = 16 cm

surface area of cone = πr (l +r)

=3.14 *16 (34 + 16)

=50.24*50

=2512 cm^2

volume of a cone = \frac{1}{3}πr^2h

=\frac{1}{3}*3.14*16^2 *30

=1.0466*256*30

=8037.888

=8037.89 cm^3

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500 people took the survey.

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If 400 represents the people who prefers eating in the restaurant; then, 400 is the 80% of the population. To get the total population or 100%, we must divide 400 by 0.80 or 80%

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