Which of the following shows the division problem below in synthetic division form?
2 answers:
Answer:
Choice D
Step-by-step explanation:
Given division problem is
Now we need to find about which of the given choices shows the division problem below in synthetic division form.
To convert into synthetic division form, we set denominator =0 so we get
x+2=0 or x=-2
Hence we divide by -2
Now collect coefficients of numerator for the dividend part
Coefficients of are 5 9 -6
Hence correct choice is D
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Answer:
The standard deviation of car age is 2.17 years.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 7.5
(a) If 99.7% of the ages are between 1 year and 14 years, what is the standard deviation of car age?
This means that 1 is 3 standard deviations below the mean and 14 is 3 standard deviations above the mean.
So
I want to find
The standard deviation of car age is 2.17 years.