Any number over its self. for example 1,999/1,999
Answer:
S = (-8, 0 )
Step-by-step explanation:
Answer:
Your movie marathon will last 6 hours.
Step-by-step explanation:
This question can be solved using a rule of three.
Each movie lasts
hours. How much do 4 movies last?
So
1 movie - 1.5 hours
4 movies - x hours
x = 4*1.5 = 6
Your movie marathon will last 6 hours.
<span>P(n,2)=42, find n.
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n!/(n-2)! = 42
n(n-1) = 42
n^2 -n - 42 = 0
(n-7)(n+6) = 0
Positive answer:
n = 7
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Cheers,
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