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2 answers:
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Remember you need to write complete questions in order to find exact answers. In this way you haven't provided any function, so I'll choose a quadratic function given by:
So we need to find the entire interval at which this function positive. Put another way:
By using graphing tool, we get the graph shown below. As you can see:
- The function decreases from
- The function increases from
- The graph of the function is a parabola that opens up.
But what is really importan in this problem is that:
- The function is positive over the interval
At this interval the function is positive, that is,
Standard equation of the graph of a parabola:
#LearnWithBrainly
Answer:
205 litres
Step-by-step explanation:
Given:
Volume of water is given as:
(in litres)
<em>m</em> is the time in minutes spent filling water in Eduardo's pool.
To find:
Volume of water in the pool after the water is filled for minutes.
Solution:
Here, volume of water in the Pool (in litres) is given by the equation:
....... (1)
Where m is the time for which Eduardo fills the pool.
Here, we are also given that
m = minutes =
minutes
And we have to find the value of V after minutes.
Let us put the value of m as minutes in the equation (1) to find the value of V.
So, the volume of water in the pool after minutes is <em>205 litres.</em>