Tìm cực trị của hàm số
z=yx+(y²/2)–2y–(x³/3)

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?