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3 years ago

Please Help !!!!!!!!

Mathematics

2 answers:

Virty [35]3 years ago

8 0

Your answer is 17.1 !

sdas [7]3 years ago

4 0

Area of the triangle base: (1/2)*3.3*x
area of the cone base: pi*3*3
they are equal, so 9pi=(1/2)*3.3x
x=17.1

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A survey showed that 77% of adults need correction for their eyesight.

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We are supposed to find $P(x\leq 11)$

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Formula : $P(x=r)=^nC_r p^r q^{n-r}$

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Using calculator

$P(x\leq 11)=0.00512$

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