If i had 2 slopes, one that was x+2y> -2 (2y> -x-2) and x+y≥4 (y≥-x+4), what direction would each of the slopes be if i plotted them on a graph? what direction is both a positive and negative graph and how can i tell if it's positive or negative?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

The polynomial 10x3 + 35x2 - 4x - 14 is factored by grouping. 10x3 + 35x2 - 4x - 14 5x )-20 what is the common factor that is missing from both sets of parentheses?

Which number line correctly shows 0.8 + 0.3?