AllyChance2564
17.08.2021 •
Mathematics
When testing the IQ of a group of adults, a researcher noticed that the correlation between IQ and age was negative. Is this a guarantee that all younger people have higher IQs than older people
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Ответ:
[area of a circle]=pi*r²
r=5 in
[area of a circle]=pi*5²> 78.5 in²
if 2pi radians ( full circle) has an area of> 78.5 in²
1.5 radians> X
X=1.5*78.5/2pi> 18.75 in²
the answer is
the area of the sector formed by a central angle is 18.75 in²