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2 years ago

May u guys help me jus me out 5 ez questions for u guys to help me with

Mathematics

1 answer:

Elena-2011 [213]2 years ago

3 0

Answer:

1. -29/156 2. 38/45 3. 29/45 4. 113/24 or about 4.7 5. 457/1, 914/2, 1371/3

Step-by-step explanation:

3/13 - 5/12 can be simplified to 36/156 - 65/156. Subtract this and you get -29/156

4/9 + 2/5 can be simplified to 20/45 + 18/45. Add this and you get

38/45

5/8 - 2/9 can be simplified to 45/72 - 16/72. Subtract this and you get

29/45

3 1/2 + 2 5/12 can be first made irrational to 7/2 + 29/24. This can be simplified to 84/24 + 29/24

113/24 or about 4.7

Not sure about the 457, but to convert it, you multiply it by whatever denominator you have. For example

1x457 = 457/1

2x457 = 914/2

And finally 3x457 = 1371/3

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<u>solution</u>

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3 years ago

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2 years ago

According to a study conducted in one city, 35% of adults in the city have credit card debts more than $2.000. A simple random s

BabaBlast [244]

Answer:

Binomial; \mu p=87.5, \sigma p=7.542

Step-by-step explanation:

a distribution is said be a binomial distribution iff

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each trial should have 2 outcome : p or (1-p) i.e, success or failure only.
there are fixed number of trials (n)
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here, the trials are obviously independent ( because, one person's debt doesn't influence the other person's)

here n=250

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(35/100=0.35 is the required p here)

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[since, the formula for $\mu _{p} =n*p$ ]

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[since, the formula for [tex]\sigma _{p} =\sqrt{n*(p)*(1-p)}

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2 years ago

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Answer:

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Step-by-step explanation:

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Brainlest?

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2 years ago