The inequality that represents the domain of the function is 
<h3>How to determine the domain?</h3>
The function is given as:
Set the radicand greater than or equal to 0
Multiply through by 2
x - 20 ≥ 0
Add 20 to both sides
x ≥ 20
Hence, the domain of the function is x ≥ 20
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28.9 I think is this, I hope this help
Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Solve for </u>
<u> in the 1st equation:</u>
<u>Substitute the value of </u><u> into the 2nd equation and solve for </u>
<u>:</u>
<u>Substitute the value of </u><u> into the 3rd equation and solve for </u>
<u>:</u>
<u>Plug </u><u> into the solved expression for </u><u> and evaluate to solve for </u><u>:</u>
<u>Plug </u><u> into the solved expression for </u><u> and evaluate to solve for </u><u>:</u>
Therefore:
<span>1x + 2x = 15
3x = 15
3x/3 = 15/3
x = 5
Gemma = 1x, Zak = 2x therefore Gemma = 5 and Zak = 10</span>
Answer:
b!
Step-by-step explanation:
