Discover Questions

Find a positive angle, less than 360 degrees, that is coterminal with a 1715 degree angle. Please show steps!!? If x^2+y^2 = 6, and x+y=3, then what is x^3+y^3? Could someone help me with these math problems? I can't figure them out. Solve the linear equation;
x+2y=15
y=-2x+0 9x-12y=-3
-12x+16y=4? Solve the equation for x.
e^x = 85? In one mole of the compound iron(III) oxide,
what fraction of the total number of ions is
the oxygen ion?