Joan has 294 marbles
dan has 7 marbles
Answer:
its 3rd graph, the one with (-1,0) point
The answer I think is 2+7+0.15x_>15
I think the answer would be 2.05 because 6.15/3 is 2.05
Sin2x=2sinxcosx, cos2x=1-2sin^2x
sin(2x)+cos(3x)=2sinxcosx+cos(x+2x)
cos(x+2x)=cosx(1-2sin^2(x))-sinx2sinxcosx
sin(2x)+cos(3x)=2sinxcosx(1-sinx)+cosx(1-2sin^2(x))
