When taking square roots, you can't take square roots of negative roots of negative numbers. So, what will work for the domain of u(x) is what makes u(x) zero or more. We can make an inequality for that.
u(x) ≥ 0.

9x + 27 ≥ 0 by squaring both sides
9x ≥ -27
x ≥ -3
So the domain of the function is when x ≥ -3 is true.
Answer:
25 inches
Step-by-step explanation:
To find the difference you need to substract one from another
110-85=25 inches
Answer:
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Step-by-step explanation:
78....................................................
Answer:
D- HM
Step-by-step explanation:
A ray has one point and one side that goes on forever. We see this expressed with HM
HK is a line
HM is a ray