The question is incomplete. The complete question is :
How would you find out how many sixth through eighth grade students are interested in joining a running club? Explain how to choose a sample that will give you a good representation of a whole population.
Answer :
the sample should be random
Explanation :
We have to find the number of student from 6th through 8th grade students those who wanted to join a running club by choosing a sample of population. So in order to choose a sample which will provide a good representation for the whole population is that the sample must be a from
and it should also include enough students to be reliable. The smaller samples have a more variation that lead to a lesser reliable inference.
Answer: D) (2,0)
Step-by-step explanation:
These are your values.
Remember this means;
The formula for finding the midpoint of a segment is simple. Add both x's and y's and divide them by 2 separately. Or, if you like to follow formulas, here you go.
Let M be midpoint.
Answer:
The other zero is also a rational number.
Step-by-step explanation:
In a quadratic equation
Quadratic formula:
Case 1: If , then the given quadratic equation has two distinct real zeros.
Case 2: If , then the given quadratic equation has exactly one real zero.
Case 3: If , then the given quadratic equation has two distinct complex zeros.
It is given that the quadratic has 2 distinct zeros. One of the zeros is rational.
It means
and
is a rational number.
Therefore, the other zero is also a rational number.