David can finish painting the room in six hours and his elder brother Anthony can finish it in four hours if both brothers paint
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we have the function
For x=2
substitute
therefore
<h2>the answer is 4.20 million dollars</h2>The distance between any 2 points P(a,b) and
Q(c,d) in the coordinate plane, is given by the formula:<span>
<span> </span></span>
Using this formula we calculate the distances |PA|, |PB|, |PC|, |PD| and |PE| and compare to 5.
Answer: B and D