Let speed of train is ‘x’ m/s So, length of train = 32 × x = 32x metres And, 32x + 289 = 1.45 × x × 42 Or, 28.9x = 289 Or, x = 10 m/s So, length of train = 32 × 10 = 320 metres Desired time = (320 + 120)/10 = 44 seconds
Two duopolist firms, 1 and 2, sell a homogeneous good in a market with the demand function Q=100−2P, where Q is the quantity demanded at price P. Firm...
The two regression lines are 6X+4Y=52 and 12X+6Y=62. Find the correlation coefficient.
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