1) consider the expression x^2-b. what has to be true about the values of b for this expression to be factorable?
2)write an equation of a radical (square root symbol) that has the starting point (vertex) of (5,-2)
3) if we aren't careful we would take x/x and simplify it to be 1. if you graph y =x/x it may look like a straight line, but what is "missing on your graphing calculator?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %