Let x and y are the integers.
the product of two integers x and y = (x)(y) = 9
and their sum = x + y = -6
y = -6 -x
now put the value of y in the product equation;
(x)(-6-x) = 9
-6x - x² -9 = 0
x²+6x + 9 = 0
x² +3x +3x + 9 = 0
x(x+3) + 3 (x+3) = 0
(x+3)(x+3) = 0
so, x+3 = 0
x = -3
So, the two integers are -3 and -3
if we multiply -3 and -3 we get answer 9
and if we add -3 and -3 we get answer -6.
Answer: D. Modelling.
Modeling is not part of hypothesis testing.
Explanation:
Hypothesis testing is an essential procedure in statistics. A hypothesis test evaluates two mutually exclusive statements about a population to determine which statement is best supported by the sample data. When we say that a finding is statistically significant, it's thanks to a hypothesis test.
Steps in testing hypothesis
1. State the hypotheses. Every hypothesis test requires the analyst to state a null hypothesis and an alternative hypothesis. ...
2. Formulate an analysis plan. The analysis plan describes how to use sample data to accept or reject the null hypothesis. ...
3. Analyze sample data. ...
4. interpret the results
Answer:
The concept of place includes the characteristics that make it unique in terms of both the land and of the people that inhabit it. So, a map of the Pueblos indicates a culture as well as a location.
The correct answer is A
The civil service provided stability to the Han Empire for over 2,000 years. ITs employees were called mandarines, that needed to be able and honest men and who receive training in order to become competent for the job. It was an important effort for establishing a meritocracy.
One of the requirements was that an official could not serve in his home district. It was a further step in their training, as they could accumulate more knowledge about the empire, its functioning, different conviving social environments and cultures.
