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What is the potental energy of a 50 kg pole-vaulter when she is 4m above the ground? Whats the inverse of 1. y=6x-8 2. y=4 + *cube root of* 2x 3. y= 16(x-1)^4? Find the linear approximation of the f(x,y)=x/(x+y) at the point (1,4). Can you please show all the steps and the equations? Find the area of the shaded region. The graph depicts the standard normal distribution of bone density score with mean 0 and standard deviation 1.? What has happened to deplete the water in aquifers?