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Sedbober [7]
3 years ago
7

Work out the area of this circle radius 10cm take pie to be 3.142 and write down all the digest given by your calculator

Mathematics
2 answers:
Crazy boy [7]3 years ago
8 0

Answer:

314.2 cm²

Step-by-step explanation:

A = π·r²

= 3.142·10²

= 3.142·100

= 314.2 cm²

Alika [10]3 years ago
7 0

Answer:

314.2

Step-by-step explanation:

Area of a circle is: πr²

if radius is 10 then A = π*10² = 3.142 *100 =

314.2

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Step-by-step explanation:

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4 0
3 years ago
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A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer.
dimulka [17.4K]

Answer:

b.  =8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Step-by-step explanation:

Sample size (n) = 45

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Variance (V) = 9 minutes

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Answer:

9

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a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

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