What is the probability against a spinner landing on a green section if the spinner had 15 sections and 3 of them are green ?
2 answers:
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By the law of cosines, the angle 
satisfies
which reduces to
which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
which reduces to
which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
Answer:
The value of n is 30.25.
Step-by-step explanation:
The given expression is
....(1)
The perfect square trinomial are defined as
.....(2)
On comparing (1) and (2), we get
The given expression is perfect square trinomial if
Therefore the value of n is 30.25.