The volume of the composite figure is 145.68 cubic meters
<h3>Volume of composite figures</h3>
Composite figures are figures that is made up of more than one shape. The volume of the figure is expressed as:
Volume = volume of cylinder + volume of prism
Volume = πr²h + lwh
where
r is the radius of cylinder
h is the height
l, w and h are the length, width and height respectively
Substitute the dimensions
Volume = 3.14(2)² * 3 + (2.4*5*9)
Volume = 37.68 + 108
Volume = 145.68 cubic meters
Hence the volume of the composite figure is 145.68 cubic meters
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Answer:
Step-by-step explanation:
There are 8 possible outcomes.
The theoretical probability that a vowel will NOT be chosen is the ratio 5/8.
The theoretical probability that the letter N will be chosen is 0.
Answer:
a=170
Step-by-step explanation:
(a+10)=180[because being a straight line]
or, a+10=180
or,a=180-10
a=170
Therefore,a=170
Answer:
358 randomly selected air passengers must be surveyed.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is given by:
98% confidence level
So , z is the value of Z that has a pvalue of , so .
Assume that a prior survey suggests that about 22% of air passengers prefer an aisle seat.
This means that
How many randomly selected air passengers must you survey?
We need a sample of n, and n is found for which . So
Rounding up
358 randomly selected air passengers must be surveyed.