They are dependent events, because the probability of the second event depends on the result of the first event
If you replace the marble before picking up the second marble, then the first event didn't affect the second result ant the events were independent.
Given that you did not replace the marble, the second pick up has different probailities depending on the first result.
Answer:
Step-by-step explanation:
x + y = 4 ---------------(i)
x = 4-y
7x + 9y = 42 -----------(ii)
Plug in x = 4-y in equ (ii)
7*(4 - y) + 9y = 42
28 - 7y +9y = 42
28 + 2y = 42
2y = 42 - 28
2y = 14
y = 14/2
y = 7
x = 4 - y
x = 4 - 7
x = -3
Undefined at the x- intercepts, +1 and -1. (apex)
Step-by-step explanation:
Error = 7.7-7.4=0.3
% error= 0.3/7.7×100 % error= 3.89%
= 3.9% to the nearest tenth
Answer:
= -27x-63y+72
Step-by-step explanation:
if you need an explanation, let me know
i hope this helps :)