Answer:
The quadratic equation is: 
Step-by-step explanation:
If the roots of the quadratic equation are "-6" and "6", then it must have the following factors: 
Therefore, we can write the equation in factor form as:
where a is a real number constant factor. Now, this equation in standard form will look like:
Therefore, using the information about the leading coefficient being "1" (one), we derive that the constant factor 
must be "1". The final expression for the quadratic becomes:
You can determine this by doing b² - 4ac (using the values in the quadratic function) and see if it is greater than zero, less than, or equal to. If it is greater, then it has 2 x-intercepts or zeroes. If it equals zero, then you have one x-intercept. If it equals less than zero, you have no x-intercepts.
Mean: ( 9 + 7 + 6.5 + 7.5 + 7 + 8 + 5 + 6 + 7.5 + 8 ) : 10 = 7.15
Variance:
(Sigma)² = ( 1.85² + 0.15² + 0.65² + 0.35² + 0.15² + 0.85² + 2.15² + 1.15² + 0.35² + 0.85² ) : 10 ≈ 1.15
Answer: C ) 1.15
Answer:
e < -5
Step-by-step explanation:
5e + 4 < 3e - 6
Subtract 3e from the right side
2e + 4 < -6
Subtract 4 from the left side
2e < -10
Divide both sides by 2
e < -5
