Which of the following is a valld conclusion for the quadratic equation? x2 - 6x+8=0
OX-3 = 0 and x+ 5 = 0
Ox+ 4 = 0 and x + 2 = 0
O x-4 = 0 and x + 2 = 0
O x-4 = 0 and x - 2 = 0

x - 4 = 0 and x - 2 = 0

Step-by-step explanation:

Step-by-step explanation:

and

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OAmalOHopeO

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78.59 is the mean

step-by-step explanation:

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.