Out of numbers: 5, 7, 21, 25, 28, 35, 42, 56, 75, and 80, choose those which are not factors of 42

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square