Answer:
x < -6
Step-by-step explanation:
quick explanation: when you transfer (-9) to the other side it becomes +9.
Therefore, -15+9= -6
The functions have complex roots from the image are
Functions (b) and (d). This is further explained below.
<h3>What is Function?</h3>
Generally, Function is simply defined as a connection between two or more variables that may be expressed mathematically.
In conclusion, Functions with graphs that never touch or cross the x-axis are said to have complicated roots, not real ones.
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A. x=the cost of one lunch. 60.25=5x+3(x-5.25)
b. 60.25=5x+3x-15.75 60.25+15.75=8x-15.75+15.75
76=8x 76/8=8x/8 9.50=x
A lunch is $9.50. If you are not sure, check my answers. Hope this helped.
Answer:

Step-by-step explanation:

Add 9x to both sides:

Simplify:

Solve with the quadratic formula:
For a quadratic equation of the form
the solutions are:

For 


The solution to the quadratic equation are:

Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day!