Should be C. 1/19. because if there's 20 maebles in the bag and without replacing the marble then it actually would be 2/18
I don’t know find it out lol
Using sin(A+B) = sinAcosB + cosAsinB
sin20cos40 + cos20sin40 = sin(20+40) = sin60degree
=
Answer:
(x+5)(x-9)
Step-by-step explanation:
Answer:
more information?
Step-by-step explanation:
this question just confuses me a little bit