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dolphi86 [110]
3 years ago
12

Math problem help to do this step by step ​

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
8 0

Step-by-step explanation:

(root under) 2×3×3×4

(root under) 2×3×3×2×2

3×2 (root under) 2

6 (root under) 2

sorry i don't have the root under symbol, if you are confused it is the symbol that is at the first of your question.

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ASHA 777 [7]
2) AAA

or the angle-angle-angle postulate.

There are congruent angles (as seen by the lines on the angles) that indicate this is the accurate answer.

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Someone plz help Which of the following equations represent f(x)=x^4 stretched vertically by a factor of 2 and horizontally by a
anzhelika [568]

Step-by-step explanation:

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5 0
3 years ago
A researcher conducted an experiment to investigate the effectiveness of a medicated lotion in treating a skin irritation. A gro
Helga [31]

Answer:

It can be concluded that the medicated lotion has an effect on treating skin irritations.

Step-by-step explanation:

In this case we need to determine whether the medicated lotion was effective in treating the skin irritation or not.

The hypothesis can be defined as follows:  

<em>H₀</em>: There is no difference between the two proportions, i.e. <em>p</em>₁ - <em>p</em>₂ = 0.  

<em>Hₐ</em>: There is a significant difference between the two proportions, i.e. <em>p</em>₁ - <em>p</em>₂ ≠ 0.  

The information provided is:

n₁ = 40

n₂ = 40

X₁ = 36

X₂ = 16

Compute the sample proportions and total proportions as follows:

 \hat p_{1}=\frac{36}{40}=0.90\\\\\hat p_{2}=\frac{16}{40}=0.40\\\\\hat P=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{36+16}{40+40}=0.65

Compute the test statistic value as follows:

 z=\frac{\hat p_{1}-\hat p_{2}}{\sqrt{\hat P(1-\hat P)[\frac{1}{n_{1}}+\frac{1}{n_{2}}]}}=\frac{0.90-0.40}{\sqrt{0.65(1-0.65)[\frac{1}{40}+\frac{1}{40}]}}=4.69

The test statistic value is 4.69.

The decision rule is:

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

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

 p-value=2\times P(Z

The <em>p</em>-value of the test is very small.

The null hypothesis will be rejected at any significance level.

Thus, there is a significant difference between the two proportions.

So, it can be concluded that the medicated lotion has an effect on treating skin irritations.

6 0
3 years ago
What is the equation of the line that goes through the point (-2,5) and is parallel to the line below?
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4 0
2 years ago
the perimeter of the triangle shown to the right is 154 meters. find the lenght of each side. (4x)m  (7x+2)m  (7x+8)m
yaroslaw [1]
The first to find the length of each side, we have to find the value of x :
(4x) + (7x + 2) + (7x+8) = 154

4x + 7x  + 7x + 2+8 = 154

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18x = 154 - 10

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x =  \frac{144}{18}

\boxed{x=8}

<span><u>Solution First side :</u>
</span>(4x)m = (4 \cdot 8)m = 32\ m<span>
 
<u>Solution Second Side :</u>
</span>(7x+2)m = (7(8)+2)m = 58\ m<span>  

<u>Solution Third Side :</u>
</span>(7x+8)m = (7(8)+8)m = 64\ m
6 0
3 years ago
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