does anyone know if, orange juice is a pH indicator??
ok thanks!! you have been a great help [x]
i need to make a p.h indicator in sience but i cant think of any other than.. tea bags, some sort of juice and.. red cabbage anyone got any sujestions?
Come up with a question to these answers. Si, de Alicante. No, es médica. No, es argentina.
Write the standard form of the equation of the parabola whose directrix is x=-1 and whose focus is at (5,-2)? a) (y+2)^2 = 12(x+2) b) y-2 = 12(x+2) c) x+2 = 1/12(y+2)^2 d) x-2 = 1/12(y+2)^2 I get A and D? confused!
oohh yes i did! thanks!!
oh, so it is C?
For 4x^2 - 4xy + y^2 = 4 find θ, the angle of rotation about the origin, to the nearest degree? a) 27° b) 63° c) 333° d) 307° I got A, is this right?
inead help on math homwork
oh! thanks for your time!