Consider the following projection problem minimize ||x-z||^2 subject to Ax = 0; where the m ? n matrix A and the vector z 2 Rn are given. (a) Derive the dual of the problem. (b) Show that the dual problem is also a projection problem on a subspace.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?