The sum of triangle is 180 degrees. so x should be 5.
Answer:K=-2
Step-by-step explanation:
becuase you do the opposite of +9 which is -9 and you do 7-9 which is -2 so K=-2
Between 1992 and 1999 there are 7 years: the population rose 2 million in 7 years or 2/7 million each year.
Between 1999 and 2008 there are 9 years. Each year the population would rise 2/7 million so over 9 years that would be 18/7 or approimately 2 1/2 million
Therefore the estimated population would be 30 + 2 1/2 = 32 1/2 million
Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The population mean is
The standard deviation is
Given that the amounts of nicotine in a certain brand of cigarette are normally distributed
Then the probability of randomly selecting a cigarette with 0.305 grams of nicotine or less is mathematically represented as
Generally
So
From the z-table(reference calculator dot net ) value of
So
=>
=>