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Answer:
f(x) = [x – (4 + √20)][x – (4 – √20]
Step-by-step explanation:
In order to know the function that best describes the given f(x) that best reveals it's minimum or maximum, we need to know solve for x.
x² – 8x – 4 = 0
Using completing the square method
x² – 8x = 4
x² – 8x + 4² = 4 + 4²
(x – 4)² = 20
x = 4 ±√20
Therefore
f(x) = [x – (4 + √20)][x – (4 – √20]
The correct answer is C. A statement we accept
without proof is called a postulate. It is also known as an axiom. These are rules
which are accepted to be true without any evidence that will prove these. For
instance, the postulates in the kinetic molecular theory.
One square can be a 3 by 3 square, meaning each side is 3 units.The area for this would be 9.
Another one is the square can be a 9 by 9 square, meaning each side is 9 units. The area for this would be 81.
It would be 3 pounds. A pound is 16 oz so 48 divided by 16 would be 3 lbs
