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navik [9.2K]
3 years ago
14

Given that m2(n-l) m=-2 and n=3/4​

Mathematics
1 answer:
DanielleElmas [232]3 years ago
8 0

Answer:

when m= -2 and n=3/4.

-2^2.(3/4-1).

-4(-1/4)

=1.

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James is earning money to buy a bicycle for $100. For each dollar James earns, his mother gives him $1. So far he has earned $14
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James needs to earn 78 more dollars.

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Answer:

Step-by-step explanation:

the probability that at least one envelope is a yellow envelope is 16/21

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The probability that at least one envelope is a yellow envelope is P(Y);

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Given;

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blue envelopes = 3

green envelopes = 2

yellow envelopes = 3

Total = 9

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P(Y)' = P1 × P2 × P3

there is no replacement;

P(Y)' = 6/9 × 5/8 × 4/7

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P(Y) = 1 - 5/21

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the probability that at least one envelope is a yellow envelope is 16/21.

6 0
2 years ago
A woman has 21 total coins in her pocket, all of which are either dimes or quarters. If the total value of her change is $3.90,
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Answer with Step-by-step explanation:

Let there be d dimes and q quarters

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Write the number of dimes, then the number of quarters separated by a comma.

9,12

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