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puteri [66]
3 years ago
13

What is the answer of a^2+b^2-(a-b)^2

Mathematics
2 answers:
Alex787 [66]3 years ago
8 0
2b^2. This is because you have a positive a^2 and a negative so they cross it one another so it just leaves the b’s.
motikmotik3 years ago
8 0

Answer:

2ab

Step-by-step explanation:

a²+b²-(a-b)²=

=a²+b²-(a²-2ab+b²)

=a²+b²-a²+2ab-b²

=2ab

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A customer visiting the suit department of a certain store will purchase a suit with probability 0.22, a shirt with probability
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Answer:

a. The probability that a customer purchase none of these items is 0.49

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Step-by-step explanation:

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B represents shirt

C represents tie

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P(B) = 0.30

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Therefore, the probability that a customer purchase none of these items we would have to calculate the following:

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