After chamar poured 2 liters of water into a large jug, the jug contained 10 liters of water. How many liters were in the jug to start

(a) solve h+2/6 = h-3/4(b) solve the following simultaneous equations. 2x = y + 66x - 2y = 13x = ? y = ?

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)