What's the area of an equilateral triangle with sides of 10 inches and height of 7 inches

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Graph the equationy= x+3[tex]y = x + 3[/tex]