F(x)= (x+4) ^{2} -13 is the answer
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Answer:
x² + x = 42
Step-by-step explanation:
Let the number be x then the square of this number is x²
Sum and equate to 42, that is
x² + x = 42
It would take 2.25 minutes to complete 3 laps because each lap takes .75 minutes.
x + 17 ≥ -3
Isolate the x. Subtract 17 from both sides
x + 17 (-17) ≥ - 3 (-17)
x ≥ -3 - 17
x ≥ -20
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x ≥ -20 is your answer
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hope this helps
