Show that a differentiable function f decreases most rapidly at x in the direction opposite the gradient vector, that is, in the direction of −∇f(x). let θ be the angle between ∇f(x) and unit vector u. then du f = |∇f| . since the minimum value of is occurring, for 0 ≤ θ < 2π, when θ = , the minimum value of du f is −|∇f|, occurring when the direction of u is the direction of ∇f (assuming ∇f is not zero).

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

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Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.