In total there are 12 marbles because 6+4+2=12 and it says you pick 2 marbles from the hat so you subtract 12-2 and that gives you 10 and it says the marbles aren't returned so therefore you are left with 10 marbles. Hope this helps .
Step-by-step explanation:
There are nine possible combinations as follows: bb, bc, bt, cb, cc, ct, tb, tc, tt, each having a probability of 1/9. The four combinations with a cab exactly one time are: bc, cb, ct, tc. Therefore the probability that she'll use a cab exactly one time is: 4/9.
Answer:
Step-by-step explanation:
3(x-4)2=75
3x-12+2=75
3x-10=75
3x=85
28.3
Answer:
7.5
Step-by-step explanation:
Answer: I think that the answer is 100.
Step-by-step explanation: the line is straight and horizontal, and straight horizontal lines r 180 degrees, we already have 80 degrees so X is 100.
