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aev [14]
3 years ago
13

A test of the breaking strength of 6 ropes manufactured by a company

Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0

Answer:

RESULTS: The study revealed that a 1% increase in access to improved sanitation would reduce infant mortality by a rate of about two infant deaths per 1000 live births.

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2/3 divided into 4 groups, what fraction represents the answer to this question?
kondaur [170]
2/3 ÷ 4 = 2/3 * 1/4 = 2/12 = 1/6
5 0
3 years ago
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What is the domain of the relation?
amm1812

Domain:

{-4, -2, -1 , 1, 4}


Hope it helps

3 0
4 years ago
Distribute the problem <br> 2(3-8y)
77julia77 [94]

Answer:

<h3>6-16y</h3>

Step-by-step explanation:

Hello!

apply distributive law

a(b - c) = ab - ac

2(3-8y)=2.3-2.8y

  • 2.3=6
  • -2.8y= -16y

=6-16y

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6 0
1 year ago
Need help with math ASAP (Please)
Scrat [10]
First you plot in the y-intercept of the equation. To find the y-intercept, substitute 0 into x. -3m will cancel our giving you y=5. x=0, y=5, the first ordered pair is (0,5). Now after you plot in the y-intercept, use your slope, which is -3, to graph the points of the equation. Starting from (0,5), move down 3 spaces on the y-axis (because it’s -3) and you’ll end up at (0,2). Next move over 1 ( all slopes with just a whole number moves on the x-axis 1 since the whole number divided by 1 doesn’t change the slope number) to the right because it’s a negative linear equation so it’ll go downward. After moving right, you’ll get (1,2). Do a couple more points starting from (1,2) then the 3rd point ABD and so on to get 3 or more points to be able to draw a linear line.
7 0
3 years ago
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Suppose that the hourly wages of fast food workers are normally distributed with an unknown mean and standard deviation. The wag
Nutka1998 [239]

Answer: 1.303639

Step-by-step explanation:

The t-score for a level of confidence (1-\alpha) is given by :_

t_{(df,\alpha/2)}, where df is the degree of freedom and \alpha is the significance level.

Given : Level of significance : 1-\alpha:0.80

Then , significance level : \alpha: 1-0.80=0.20

Sample size : n=40

Then , the degree of freedom for t-distribution: df=n-1=40-1=39

Using the normal t-distribution table, we have

t_{(df,\alpha/2)}=t_{39,0.10}=1.303639

Thus, the t-score should be used to find the 80% confidence interval for the population mean =1.303639

8 0
3 years ago
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