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kkurt [141]
3 years ago
9

I need helpp guyssssssssssssssssssssssssss

Mathematics
1 answer:
GaryK [48]3 years ago
5 0
29 hope this helps have a great day
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A group consists of fivefive men and sevenseven women. FourFour people are selected to attend a conference.
exis [7]

Answer:

Step-by-step explanation:

a.

4 people can be selected in ways=12 P4=12×11×10×9=11880

b.

4 women can be selected in  ways=7P4=7×6×5×4=840

c.

P=\frac{840}{11880} =\frac{7}{99}

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3 years ago
Solve the following inequality
Burka [1]
First we must get rid of the -3 in the denominator
to do this you need to multiply both sides by -3

2x - 1 <span>< -5
now add 1 to both sides

2x </span><span>< -4

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x </span><span>< -2

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7 0
3 years ago
The container sells for 18.95. What is the unit rate in dollars per pack?
RoseWind [281]

Answer:

$ 0.21 per pack

Step-by-step explanation:

6 0
3 years ago
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The times to process orders at the service counter of a pharmacy are exponentially distributed with mean 1 0 minutes. If 100 cus
g100num [7]

Answer:

Therefore,  the probability that at least half of them need to wait more than 10 minutes is <em>0.0031</em>.

Step-by-step explanation:

The formula for the probability of an exponential distribution is:

P(x < b) = 1 - e^(b/3)

Using the complement rule, we can determine the probability of a customer having to wait more than 10 minutes, by:

p = P(x > 10)

  = 1 - P(x < 10)

  = 1 - (1 - e^(-10/10) )

  = e⁻¹

  = 0.3679

The z-score is the difference in sample size and the population mean, divided by the standard deviation:

z = (p' - p) / √[p(1 - p) / n]

  = (0.5 - 0.3679) / √[0.3679(1 - 0.3679) / 100)]

  = 2.7393

Therefore, using the probability table, you find that the corresponding probability is:

P(p' ≥ 0.5) = P(z > 2.7393)

<em>P(p' ≥ 0.5) = 0.0031</em>

<em></em>

Therefore,  the probability that at least half of them need to wait more than 10 minutes is <em>0.0031</em>.

8 0
3 years ago
5 friends split 1/2 of a chocolate bar. How<br> much does each friend eat?<br> Draw a model.
Vinvika [58]

Answer:

1/10

Step-by-step explanation:

the friends eat 1/10 of the whole bar or 1/5 of half a bar

3 0
3 years ago
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