Provide the missing statements and reasons for the following proof

When turned about its axis of rotation, which shape could have created this three-dimensional object?

Fast! find the length of cu. the triangles are similar. show your work.

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y