3x+6y=-2 15x+30y=-10find the solution to the following system of equation

So first thing you gotta do is multiply the first equation by 5. Your first equation will be .

Since these two lines are the same line, they have infinite solutions.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°