At Adam's Elementary School 2/5 of the students have joined a club. Of the students who have joined a club, 1/4 have joined the math club. what fraction of the students at Adams Elementary School have joined the math club?

1/10

Step-by-step explanation:

We need ti divide 2/5 with 4 to see how mach is 1/4 of 2/5.

(2/5)*(1/4)=1/10

∠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°

12/11c

or

12

c

11