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3 years ago

10

The slang height of a right circular cone is 9 meters and the radius of the base is 5 meters. What is the surface area of the co

ne?
A. 58π m2
B. 70π m2
C. 81π m2
D. 100π m2

1 answer:

juin [17]3 years ago

7 0

Answer:

So i say C

Step-by-step explanation:

240 = area

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Step-by-step explanation:

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3 years ago

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faltersainse [42]

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Heights of young adult women in the United States are approximately Normal with a mean of 64 inches and standard deviation 2.7 i

sweet-ann [11.9K]

Answer:

The proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is

$P( X > 72) =0.0015233$

Step-by-step explanation:

From the question we are told that

The mean is $\mu = 64 \ inches$

The standard deviation is $\sigma = 2.7 \ inches$

Generally 6 feet is equivalent to 6 * 12 = 72 inches

Generally the proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is mathematically represented as

$P( X > 72) = P(\frac{X - \mu }{\sigma } > \frac{72 - 64 }{ 2.7 } )$

$\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )$

$P( X > 72) = P(Z > 2.963 )$

From the z-table

The area under the normal curve to the right corresponding to 2.963 is

$P(Z > 2.963 ) = 0.0015233$

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3 years ago

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3 years ago