We know that
circumference=pi*D
where D is the diameter
diameter=4 ft
circumference=4*pi ft
if one revolution is -------------> 4*pi ft
1320 rev-------------> x
x=1320*4*pi-----> x=5280*pi ft/hout
convert ft to miles
1 mile-----------> 5280 ft
so
5280*pi ft----------> is pi mile
5280*pi ft/hour------> is equal to pi mile/hour
the answer is the option
<span>a. pi</span>
There are no 'real' numbers that can do the job.
The numbers that CAN are
8.5 + 1.66i
and
8.5 - 1.66i.
These are called 'complex' numbers.
The ' i ' is √-1 .
i am not sure about that one let me get someone to help you with have a nice day
Answer:
Answer is D) I and II only.
Step-by-step explanation:
If C=5/9(F-32) that means that the temperature is increased by 5/9 of a degree every one F degree. Also II is right because of the laws of thermodynamics.
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