Arjun can type 40 words per mintue.Dalia can type 55 words per mintue.If Arjun and dalia each type for 30 mintues,about how many
1 answer:
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Answer:
[-20.25;+∞).
Step-by-step explanation:
1) according to the properties of the given parabola the minimum is:
2) y₀=-20.25 means, the value -20.25 is minimum of the range, the maximum →+∞;
3) finally, the range y≥-20.25.