The u. s. marine corps requires that men have heights between 64 in. and 78 in. the national health survey shows that men's heights are normally distributed with a mean of 69 in. and a standard deviation of 2.8 in. what percent of men meet this requirement? ( explain how you found the answer)

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.