The content of the square root must be greater than or equal to zero. Determine the conditions on x that make this true.
As written, you require
.. x ≥ 0
If you intend
.. √(x -1) ∈ ℝ
Then
.. x -1 ≥ 0
Solve this inequality by adding 1.
.. x ≥ 1
The unit rate would be how many miles they drove in 1 hour.
To find that, divide total miles driven by total hours driven.
392 miles / 7 hours = 56 miles per hour.
The unit rate is 56 miles per hour.
Answer: x= -6 x=6
Step-by-step explanation:
expand the equation so you get (x-6)(x+6) and then set the equal to zero and solve
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