Question

3] what is the nature of the root of the quadaatic
equation 4
$4x {}^{2} - 8x + 9 = 0$
​

Answer 1

Step-by-step explanation:

A pump empties a swimming pool in 40 minutes at the rate of 1400 L/min. If the rate of pumping is 2000 L/min, how long does it take to empty the swimming pool?

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Answer 2

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