to be sure that 2 of them will be blue i have to select 7+2=9 balls
7+8=15 balls in the urn
P=9/15
to be sure that 4 of them will be yellow i have to select 8+4=12 balls
P=12/15
Answer:
14
Step-by-step explanation:
absolute value works where it doesnt matter if the number is positive or negative. the absolute value is the number positive. an absolute value can not be negative.
Answer:
3.75
Step-by-step explanation:
Answer:
it A
Step-by-step explanation:
i got it right :)