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madreJ [45]
3 years ago
7

Aiden built a cone shaped volcano for a school science project. The volcano has a base diameter of 32 cm and a slant height of 4

5 cm
a) Whats the lateral area to the nearest tenth of a square?

b) the paint for the volcanos surface costs $1.99/jar, and one jar of paint covers 400cm^2. How much will the paint cost?
Mathematics
1 answer:
inysia [295]3 years ago
3 0

Answer:

a) About 2261.95

b) $11.94

Step-by-step explanation:

a) The lateral area of a cone can be calculated via A=πrl

b) Simple do 2261.95/400 and round to the nearest 1 to get 6.  Then multiply 6 by 1.99 to get 11.94

Hope it helps <3

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Answer:

the x² test statistic 13.71

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Step-by-step explanation:

Given the data in the question;

Feeder                     1      2      3       4

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Expected e_i = 300 / 4 = 75

the x² test statistic = ?

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X^2_{stat = [ (60 - 75)² / 75 ] + [ (90 - 75)² / 75 ] + [ (92 - 75)² / 75 ] + [ (58 - 75)² / 75 ]

X^2_{stat = [ 3 ] + [ 3 ] + [ 3.8533 ] + [ 3.8533 ]

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Therefore, the x² test statistic 13.71

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2 years ago
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Answer:

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