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Anit [1.1K]
3 years ago
11

Hi :) I was wondering if you could help, I'm mixed up about this one.​

Mathematics
2 answers:
grigory [225]3 years ago
8 0

Answer:

the image is sideways

Step-by-step explanation:

Y_Kistochka [10]3 years ago
8 0

Answer:

well buddy see you thinking to hard its right there just relax and look closely

Step-by-step explanation:

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If a family spend $840 in a year on rent how much do they spend in a manth
dalvyx [7]
Month*
divide 840 with 12
as 1 year has 12 months
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4 0
3 years ago
The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.4 minutes and a standard deviation of 3.5
Lorico [155]

Answer:

0.6672 is the required probability.            

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8.4 minutes

Standard Deviation, σ = 3.5 minutes

We are given that the distribution of distribution of taxi and takeoff times is a bell shaped distribution that is a normal distribution.

According to central limit theorem the sum measurement of n is normal with mean \mu and standard deviation \sigma\sqrt{n}

Sample size, n = 37

Standard Deviation =

=\sigma\times \sqrt{n} = 3.5\times \sqrt{37}=21.28

P(taxi and takeoff time will be less than 320 minutes)

P( \sum x < 320) = P( z < \displaystyle\frac{320 - 37(8.4)}{21.28}) = P(z < 0.4323)

Calculation the value from standard normal z table, we have,  

P(\sum x < 320) =0.6672 = 66.72\%

0.6672 is the probability  that for 37 jets on a given runway, total taxi and takeoff time will be less than 320 minutes.

7 0
3 years ago
Someone pls pls pls help ASAP <br> I’ll give brainliest I promise just pls help me
Brums [2.3K]

Answer:

Answer attached below.

8 0
2 years ago
Pls help me with 4 , 5 , and 6 and show me how you did it i will mark brainlist !!
LuckyWell [14K]

Answer:

2 on top and bottom of 4   5 is 3 on top and bottom      and lastly 6 is 8 on top and bottom.

Step-by-step explanation:

all you have to do is divide the two bottom numbers on each problem and the answer to the problem will be the same on top and bottom

3 0
3 years ago
PLEASE HELP :’( last one
valina [46]

Answer:

A.3

Step-by-step explanation:

5 0
3 years ago
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