1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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:

You might be interested in
The mathematical model C = 800x + 100,000 represents the cost in dollars a company has in manufacturing x items during a month.
inessss [21]
B
subtract 100,000 from 580,000 then divide by 800
6 0
3 years ago
What is 3.56 x 10^-5 in standard form?
Olin [163]
0.00356 is the standard form
4 0
3 years ago
The data in the table represents a company’s profit based on the number of items produced
frutty [35]

Answer:

(A) y= -1.026x^2 + 1016.402x - 162075

Step-by-step explanation:

Here is the options to the question

Which equation best represents the data?

A) y= -1.026x^2 + 1016.402x - 162075

B) y= -1.036x^2 + 1024.771x - 163710

C) y= 298.214x - 66317.667

D) y= 196.2x – 18710

(A) y= -1.026x^2 + 1016.402x - 162075

The data above represents the company's profit based on number of items produced.

To get the equation which best represents the data, we have to substitute the value of x into the given equations  

By substituting x=100 in first equation, we have:

y = -1.02x² + 1016.402x – 162075

y = -1.026(100)² + 1016.402(100) – 162075

y = -70500

y = -70500

Option A satisfies.

Using the second equation  

When x = 100

y = -1.036x^2 + 1024.771x - 163710

y = -1.036(100)² + 1024.771(100) - 163710

y = -10360 + 102477.1 – 163710

y = -71592.9

Option B doesn’t satisfies  

We can also replace the various values of x in the equations to check whether or not they satisfy.

4 0
3 years ago
Can someone please be amazing and help me solve number 2?
inessss [21]
The answer is

T2=(P2V2/T1)/P1V1

7 0
3 years ago
PLEASE AWNSER NEEDED NOW Find the volume of the figure. Round your answers to the nearest hundredth, if necessary
Margaret [11]
Didn’t you get that correct?
3 0
2 years ago
Other questions:
  • PLS HELP
    11·1 answer
  • which statement is false ? A) every irrational number is also a real number B) every integer is also an irrational number C) no
    11·1 answer
  • 25xy=225 convert to polar form
    10·1 answer
  • a collector has 120 movie posters and 100 band posters. she wants to sell 24 movie posters but still have her poster collection
    11·1 answer
  • اور مدنی<br>Sin A /1-cosA= cot1/2<br>عورت سے​
    6·1 answer
  • Y=kx and x is doubled what happens to y
    7·1 answer
  • What is -25 + - 14 + 3
    11·1 answer
  • Select the reason why these triangles are
    12·1 answer
  • 14 A teacher had 800 stickers. She gave away 14 stickers each day.
    8·1 answer
  • The sun has a radius of 4.32 X 10 5 miles question ( need a answer )
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!