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Tpy6a [65]
2 years ago
8

What is the value of a? A. 12 B. 15 C. 17.25 D. 21.25

Mathematics
1 answer:
dimaraw [331]2 years ago
8 0

Answer:

C 17.25

Step-by-step explanation:

i think aanswer its c

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jack wants to buy a pair of trousers for $60 when he went to the store he found that the price was marked down by 20% how much d
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In tossing four fair dice, what is the probability of tossing, at most, one 3
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<u>Answer- </u>

In tossing four fair dice, the probability of getting at most one 3 is 0.86.

<u>Solution-</u>

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P(A) =The \ probability \ of \ getting \ zero \ 3 =(\frac{5}{6})(\frac{5}{6})(\frac{5}{6})(\frac{5}{6})=\frac{625}{1296} =0.48                    ( ∵ xxxx )

P(B) = The \ probability \ of \ getting \ only \ one \ 3 =(4)(\frac{1}{6})(\frac{5}{6})(\frac{5}{6})(\frac{5}{6}) = 0.38                    ( ∵ 3xxx, x3xx, xx3x, xxx3 )

P(Atmost one 3) = P(A) + P(B) = 0.48 + 0.38 = 0.86

7 0
3 years ago
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