X + y = 12
x - y = 4
-----------------add
2x = 16
x = 8
x - y = 4
8 - y = 4
y = 4
answer
two numbers: 8 and 4
doule check
sum = 8 + 4 = 12
difference = 8 - 4 = 4
Answer:
2545 m rounded from 2544.69
Step-by-step explanation:
A=2 π r h + 2 π r 2 = 2 · π · 15 · 12 + 2 · π ·152
≈ 2544.69005
rounded to 2545
~~~
Answer:
I think this would work: "If it rains, then it is wet." The converse is false.
Answer:
Our population of interest represent all the adults in United states who never travel using commercial airlines.
The sample on this case represent the people surveyed in United States who never travel using commercial airlines.
For this case the value obtained
represent a statistic since is a value who represent the sample not the population. Our population parameter is not known and is given by 
Step-by-step explanation:
A statistic is a "characteristic of a sample". And the statistic allows "estimate the value of a population parameter".
A parameter is a value who represent the population of interest.
For this case we have a sample size of size n = 2276
The proportion estimated
of people that nevel travel using commercial airlines was:
or 33%
Our population of interest represent all the adults in United states who never travel using commercial airlines.
The sample on this case represent the people surveyed in United States who never travel using commercial airlines.
For this case the value obtained
represent a statistic since is a value who represent the sample not the population. Our population parameter is not known and is given by 