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3 years ago

7

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 2 minutes. (a) Fin

d the probability that a customer has to wait more than 3 minutes. (Round your answer to three decimal places.)

1 answer:

harkovskaia [24]3 years ago

6 0

Answer:

That the customer has to wait for more than 4 minutes is 0.20

Step-by-step explanation:

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What have I done wrong and where please help me

lys-0071 [83]

12x - 18 - 4x -2
12x - 4x = 8x (yours 12x - 4x = 8)
-18 - 2 = -20 (yours -18 -1 = 17)

answer:

8x - 20

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3 years ago

1Ox+6-8x=9x +12-8x-2

Goshia [24]

Answer:

X=4

Step-by-step explanation:

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3 years ago

Make a conjecture about the next item in the sequence 1, -4, 9, -16

Snezhnost [94]

To get -4 from 1, we must either subtract 5 from 1 or mult. 1 by -4. Unfortunately subtracting 5 from -4 does not result in 9, and mult -4 by -4 does not result in -16. So neither "works" in predicting the next term.

Can you think of any other experiments to do that would help you discover the pattern 1, -4, 9, -16?

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3 years ago

Read 2 more answers

A sleep time of 15.9 hours per day for a newborn baby is at the 10h percentile of the distribution of sleep times for all newbor

Nuetrik [128]

Answer:

option (D) 16.5

Step-by-step explanation:

Data provided:

Sleep time of , X = 15.9 is at the 10th percentile

Standard deviation, σ = 0.5 hour

also,

10th percentile of normal distribution is

Z = F⁻¹(0.10)

or

Z = - 1.28 (Using Standard Normal distribution)

Now,

$\\Z=\frac{X-\mu}{\sigma}$

or

X = μ + ( σ × Z )

or

μ = X - ( σ × Z )

on substituting the respective values, we get

μ = 15.9 - 0.5 × (-1.28)

or

μ = 16.5

Hence, the correct answer is option (D) 16.5

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3 years ago

What is (6 gal 3qt) + ( 2gal 2 qt)

vodka [1.7K]

It is 9.25 gallons, I hope this helps :)

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