3 years ago

Help please,it may be easy for you,but it's hard for me.Question may be confusing but

Mathematics

1 answer:

olga2289 [7]3 years ago

8 0

I got 37....because 180 - 143 = 37.....

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If the difference of two numbers is 43 and the sum of the numbers is 13, what<br> are the numbers?

meriva

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Numbers are 28 and -15

Step-by-step explanation:

Mark first number X, and second number Y, then:

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and

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3 years ago

The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and

Olin [163]

Answer:

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 49 minutes

Standard Deviation, σ = 16 minutes

We are given that the distribution of time an individual reads is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

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3 years ago