What is the area of the shape below?
2 answers:
Answer:
option a
Step-by-step explanation:
In the above figure,
Area of bigger rectangle (A1)=l×b
=34cm×16cm
=544cm^2
Area of smaller rectangle (A2)=l×b
=19cm×11cm
=209cm^2
Area of triangle=1/2×b×h
=1/2×(25-11)cn×19cm
=1/2×14cm×19cm
=133cm^2
Now,
Area of whole figure=A1+A2+A3
=544cm^2+209cm^2+133cm^3
=886cn^2
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Answer:
For this case we have information from a sample of n =20 times of temperatures of the oven
The parameter of interest is population temperature mean of the oven
And the statistic is calculated with this formula:
With n = 20 and represent the mean temperature of the oven
The correct option for this case is:
mu = the true mean temperature of the oven xbar = the true mean temperature of the oven
Step-by-step explanation:
Previous concepts
Parameter represent a property of a population and is calculated with the information of all the populatio. Some examples are the population mean and deviation
Statistic represent a propoerty of a sample and are used used in order to describe the population parameters, since represent estimators of the real parameters.
Solution to the problem
For this case we have information from a sample of n =20 times of temperatures of the oven
The parameter of interest is population temperature mean of the oven
And the statistic is calculated with this formula:
With n = 20 and represent the mean temperature of the oven
The correct option for this case is:
mu = the true mean temperature of the oven xbar = the true mean temperature of the oven