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Answer:
The water is 208.22ft from the tug boat
Step-by-step explanation:
The governing equation is
y is the height above the ocean
x is the distance from the tugboat
if y= 6ft, the equation will now become
we can arrange this properly to form a quadratic equation by grouping like terms.
solving quadratically we have two values of x as 208.22ft and 0.873 ft.
We can take a more realistic value as a solution to our problems:
208.22ft
The interval notation given to us means that x is between negative infinity and 5, excluding both endpoints.
So we can write which shortens to
The graph will have an open hole at 5 on the number line, and shading to the left to indicate all points smaller than 5.