There are a various of ways solve this expression. We can choose to do completing the square method or to use the quadratic formula. In this case, I will choose to do completing the square. We do as follows:
<span>x^2 - 7x = -13
</span><span>x^2 - 7x + 49/2= -13 + 49/2
(x - 7/2)^2= 23/2
</span>√[(x - 7/2)^2]= √(23/2)
x-7/2 = √46 / 2
x = √46 / 2 + 7/2
Hope this answers the question. Have a nice day.
Part A: The school with the lowest value of σ is High School B. This also is the school with the lowest IQR.
Part B: The highest mean is that of High School C, which has average attendance 11 more than the next lower school (A).
Answer:
C
Step-by-step explanation:
To find the value of j, divide both sides of the equal sign of 7.2.
Answer: J= 12.95
