You have 4 questions whose answers can be computed using RATIOS. You need to know how much of one unit of measure is equal to a certain number of the other unit of measure. You can find the "conversion" ratios in a good dictionary or encyclopedia. As a teacher, I resist giving answers, but try … Read more

If you use "completing the square" algorithm, the equation results in y=(x +1)^2 - 7; it's graph will be a "normal", up-opening parabola, whose vertex (lowest point) is at (-1, -7), intersecting the y-axis at (0, -6), and has a mirror reflection of all of its points, with x= -1 as axis of symmetry). You … Read more

If you really mean the AREA of a cylinder, you must mean the Surface Area. For that, imagine cutting the cylinder (a can) downward and flattening it out. The surface area of the cylinder is area of the rectangle formed, whose height is the same as the height of the can, and whose length is … Read more