Marcus spent 10 hours doing his homework last week. this week he spent 11 hours doing his homework. he says that he spent 110% more time doing his homework this week. is he correct? show your work. as fast as

Marcus is incorrect.

Step-by-step explanation:

For him to work 110% more than he did last week, he would have had to work 21 hours. Since 100% is 10, 110% would have to be 11, Right? So 110% MORE than last week is 210%, also 21 hours.

But he could also be correct. If you think of it a different way, as 110 more than 0 hours, so 0%, then 110% more than 0 hours is 11 hours.

∠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°