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Find the complement of the angle 3pi/7. Please show steps!? 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? If 7.46g of CrCl3 are dissolved in enough water to make 385 mL of solution, what is the molarity of the resulting solution? Number Theory: Find the roots of 4x^2+6x+1 in Z11 (could you please explain step by step? THANKS!)? White light is directed at difraction grating at angle normal to gratting.starting at norml to grating 0dgre the odr of red,gren,blue wil be?