Step-by-step explanation:
I'm not sure if I got the correct answer since English is not my first language
Answer:a) 54/55
b) 100/110
c) 99/110
Step-by-step explanation:
a)Probability of ordering 4= 9/12×3/11×2/10×1/9 = 54/11880
Probability of 4 good units= 4 × 54/11880
= 216/11880
1/55
1-(1/55) = 54/55
b)Probability of 2 good units= 2 × 54/(11880)
= 108/11880
= 1/110
1- (1/110)= 100/110
c) Probability of exactly 2 units not good= 1 -(100/110) =99/110
Answer:
x= -21
Step-by-step explanation:
6/7x=-18
divide both sides by 6/7
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x= -21
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Answer:
its B!!!!!!
Step-by-step explanation:
have great day
Answer:
1.45
Step-by-step explanation:
not sure but trying to help :)
