
Question regarding basic topology of open and closed sets.

math homework help..................................

Hi there. Could use your assistance again. Thanks!

10 months ago, George invested $1,000 by buying 100 shares of Can't Lose Mutual Fund, an aggressive growth noload mutual fund. George reinvested his dividends, so he now has 112 shares. So far, the N

Hi I'm studying for math which i would be taking soon and was wondering if i could get answers to these questions

the quiz is 120min for 11 question from matrices and determinants, linear and nonlinear system of equation and inequalities and Gaussian elimination

Let v be a nonzero vector in R^n, and let W={x R^nx^T*v=0} Show that W is a subspace of R^n of dimension(n1) The rest parts are on the image

Indicate true or false and give a reason in each case.

Suppose V and W are subspaces of R^n with the intersection of V and W is {0} and dim(V)+dim(W)=n. If B1is a basis for V and B2 a basis for W. Show that B1 U B2 is a basis for R^n

The monthly sales at an import store are currently $10,000 but are expected to be declining at the rate of S'(t) = 10t^(2/5) dollars per month t months from now. The store is profitable as long as t
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1. I’m having problems with my math. Can you help me? All I need is an example just to make sure I'm on track.
 2. How do I set up this problem? An exam contains five "true or false" questions. How many of the 32 different ways of answering these questions contain 3 or more incorrect answers?