Find the horizontal or oblique asymptote of f(x) = negative 2 x squared plus 3 x plus 6, all over x plus 2 .
2 answers:
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
We need to find the horizontal or oblique asymptote .
Since the degree of numerator is more than the degree of denominator.
So, it has oblique asymptote.
And,
At last, we get,
Hence, the oblique asymptote of f(x) is
y=-2x+7
Therefore, First option is correct.
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Answer:
a) Hypothesis:
:
:
Where represent the average nose size of male and female respectively.
In words,
: Males and females have the same size noses, on average.
: Males have bigger noses than females, on average.
b) We have evidence that males have bigger noses than females, on average.
Step-by-step explanation:
a) The study wishes to investigate if males have bigger noses than females, on average. By hypothesis test, the null hypothesis is the hypothesis we usually want to reject. That is, we want to prove that the male and female nose sizes are not the same. Hence, the null hypothesis will assume equality. And we state that:
: Males and females have the same size noses, on average.
: Males have bigger noses than females, on average.
b) We are told that the p-value < 0.01. In general, if the assume 5% as the level of significance (). The decision is:
If p-value is less than the , the test is significant otherwise, the test is insignificant.
The given p-value is less than 5% => 0.05, therefore, we say the test is significant. and we conclude that, we have evidence that males have bigger noses than females, on average.