Find the first partial derivatives of the function. (Sn = x1 + 2x2 + ... + nxn; i = 1, ..., n. Give your answer only in terms of Sn and i.) u = sin(x1 + 2x2 + ⋯ + nxn)

Acertain standardized? test's math scores have a? bell-shaped distribution with a mean of 520 and a standard deviation of 105. complete parts? (a) through? (c)

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =