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Alja [10]
3 years ago
8

Where does y = 1.8x + 3.1 and y = 2.3x + 1.9 intersect brainly

Mathematics
1 answer:
butalik [34]3 years ago
4 0

Answer:

4.9=4.2

Step-by-step explanation:

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In the Journal of Shell and Spatial Structures (December 1963), environmental researcher Vivek Ajmani studied the performance of
igomit [66]

Answer:

The standard deviation of the load distribution is of 5102.041 pounds.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 20000

Also, the probability that the load is between 10,000 and 30,000 pounds is 0.95.

10,000 pounds and 30,000 pounds are equidistant from the mean. Due to this, and the probability of 0.95 of having a value in this range, 10000 is the (100-95)/2 = 2.5th percentile and 30000 is the (100+95)/2 = 97.5th percentile. Applying one of them, we find the standard deviation.

30,000 is the 97.5th percentile:

This means that when X = 30000, Z has a pvalue of 0.975. So when X = 30000, Z = 1.96. Then

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

1.96 = \frac{30000 - 20000}{\sigma}

1.96\sigma = 10000

\sigma = \frac{10000}{1.96}

\sigma = 5102.041

The standard deviation of the load distribution is of 5102.041 pounds.

8 0
3 years ago
The events A and B are independent such that P(A)=0.5 and P(B)=0.7.
pochemuha

Answer:

the answer to this is 0.15 #4

8 0
3 years ago
How to find 2 equivalent fractions for 8/l0
Harlamova29_29 [7]

Answer:

4/5 ;$;$&$&&$&$*$,$*$,**$*$*$*$*$

4 0
3 years ago
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Find this value for brainiest <br> 1+9^14
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Answer: 2.2876792e+13

Step-by-step explanation: calculator

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3 years ago
Which of the following has the greatest value <br>A)3³<br>B)5²<br>C)1¹⁰<br>D)2⁵​
Alecsey [184]

Answer:

A - Highest is 27

Step-by-step explanation:

***If you found this answer helpful please click the heart Icon and rate me 5 star, it would be nice if I got brainliest, thanks!***

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3 years ago
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