Eight hours a day is a healthy average
Answer:
MY friend the anwser is A I hope this will help plz mark me brainliest
Step-by-step explanation:
The given graph is a downward parabola.
The roots of the equation is -2 and -8, and the vertex is (-5,7).
The general root form of parabola will be,
a(x-(-2))(x-(-8))=a(x+2)(x+8).
The value of a can be determined from the coordinate of vertex,

Thus, the required quadratic is,

The value of f(-6) can be determined as,

Thus, the requried value of f(-6) is 6.22.
Step-by-step explanation:
Given that
A worker's salary is increased by 12%.
Let the worker's original salary is represented by s. It means, the new salary of the person is given by :
New salary = 12% of s
So,

Hence, this is the required solution.