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Irina18 [472]
3 years ago
11

If six women paint a fence in two days, how long does it take for two women to paint the fence?

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

Answer:

6 days

Step-by-step explanation:

I know this because you would divide 6 women by 3 to get two women so you would multiply the two days by 3 to get 6 days

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the surface area of a square pyramid is 84 square inches. the side length of the base is 6 inches. what is the value of x?
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Find the value of the expression 2xy^3 if x=3 and y=-2?
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If there are 25 students in a class and 16 of them are girls, what percent of the students are girls? Please explain.
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Read 2 more answers
What is the domain and range of f(x)=4^x-8
gladu [14]

If the function is: f(x) = 4^x     - 8

D = {XeR}
R = {YeR|Y≥0}


if the function is: <span>f(x)=4^(x-8)

</span>D = {XeR}
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8 0
3 years ago
You are studying the relationship between the history of early childhood trauma (categorized as trauma/no trauma) and weight in
jeka57 [31]

Answer:

You can decide to <u>reject</u> the Null Hypothesis at p < 0.05.

Step-by-step explanation:

In this case, the relationship between the history of early childhood trauma and weight in adulthood are being studied.

The categories of childhood trauma are:

Trauma and No trauma.

So, number of rows is, <em>r</em> = 2.

The categories of weight in adulthood are:

Low to normal, Overweight, and Obese

So, number of columns is, <em>c</em> = 3.

The distribution of the statistic \chi^{2} is chi-square with (<em>r </em>- 1)(<em>c </em>- 1) degrees of freedom, where <em>r</em> represents the number of rows in the two-way table and <em>c</em> represents the number of columns.

Compute the degrees of freedom as follows:

df = (r-1)(c-1)=(2-1) \times (3-1) = 2

It is provided that the calculated value of Chi-square test statistic is 18.26.

Compute the <em>p</em>-value of the test as follows:

p-value=P(\chi^{2}_{2}\geq 18.26)\\=0.000108\\\approx0.00011

Decision rule:

The null hypothesis will be rejected if the <em>p</em>-value of the test is less than the significance level.

The significance level is, <em>α</em> = 0.05.

<em>p</em>-value = 0.00011 < <em>α</em> = 0.05.

The null hypothesis will be rejected at 5% level of significance.

Thus, the complete statement is:

"You can decide to <u>reject</u> the Null Hypothesis at p < 0.05."

4 0
3 years ago
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