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Travka [436]
3 years ago
11

The size of the left upper chamber of the heart is one measure of cardiovascular health. When the upper left chamber is enlarged

, the risk of heart problems is increased. The paper "Left Atrial Size Increases with Body Mass Index in Children" (International Journal of Cardiology [2009]:1-7) described a study in which the left atrial size was measured for a large number of children age 5 to 15 years. Based on this data, the authors concluded that for healthy children, left atrial diameter was approximately normally distributed with a mean of 26.4 mm and a standard deviation of 4.2 mm.Approximately what proportion of healthy children has left atrial diameters less than 24 mm?Approximately what proportion of healthy children has left atrial diameters greater than 32 mm?Approximately what proportion of healthy children has left atrial diameters between 25 and 30 mm?For healthy children, what is the value for which only about 20% have a larger left atrial diameter?
Mathematics
1 answer:
Lelechka [254]3 years ago
4 0

Answer:

so you need the value for the 20% right ?

Step-by-step explanation:

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Answer:

The cost of Ningbo Shipping Preferred stock is 12.40%

Step-by-step explanation:

In this question, we are asked to calculate the cost of Ningbo shipping Preferred stock.

To calculate this, we make use of the following mathematical relation;

The cost preferred stock Kp = Annual dividends/ Issued price-Cost of Issuing

From the question, we identify the following;

Issued price = $125

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Cost of Issuing = $4

Inserting these into the formula we have;

Kp = $15/$125 - $4 = 12.40%

This means that Cost of Ningbo shipping preferred stock is 12.40%

5 0
3 years ago
The perimeter of a rectangular garden is
olganol [36]
Perimeter = 2 ( width + length)
294 = 2 (56 + length)
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147 = 56 + length
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91 = length

so the length is 91 feet
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finlep [7]
#Algebrastruggles lol

The answer is y= 3x + 3
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4 years ago
Which is the graph of f(x) = (x + 3)(x - 2)?
Lana71 [14]

Answer: the is B

Step-by-step explanation:

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a prism has a volume of 512 cubic feet. the width is 8 feet. Could this prism be a cube why or why not
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Because the volume of a cube with side length 8 feet = 512 cubic feet, the prism could be a cube.

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