Sherina wrote and solved the equation. x minus 56 = 230. X minus 56 minus 56 = 230 minus 56. X = 174. What was Sherina's error? Sherina's work is correct. Sherina only needed to subtract 56 from 230. Sherina made a subtraction error when subtracting 56 from 230. Sherina should have added 56 to both sides of the equation.

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.