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Alex17521 [72]
2 years ago
5

The ratio for 18 girls to 27 boys as a fraction is

Mathematics
2 answers:
kakasveta [241]2 years ago
5 0
18/27 is the fraction you just said it

sineoko [7]2 years ago
5 0

18/27 reduce it divide by 9

You got 2/3 or 2:3

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Solve the simultaneous equations<br> 2x + 5y = 16<br> - 2x + 3y = 8
anygoal [31]

Answer:

2x+y= -2, x + 2y = 2

x+y=3 , 2x-8y = 19

6x^2+3y^2=12 , x +y = 2

4 0
2 years ago
g If a hypothesis test with a significance level of α rejects H0: μ1=μ2 in favor of Ha: μ1≠μ2, then thecorresponding (1- α)% con
Effectus [21]

Answer:

The statement, (1- <em>α</em>)% confidence interval for (μ₁ - μ₂) does not contain zero is TRUE.

Step-by-step explanation:

The hypothesis for a test is defined as follows:

<em>H</em>₀: μ₁ = μ₂ vs. <em>H</em>ₐ: μ₁ ≠ μ₂

It is provided that the test was rejected st the significance level <em>α</em>%.

If a decision is to made using the confidence interval the conditions are:

If the null hypothesis value is not included in the (1 - <em>α</em>)% confidence interval then the null hypothesis will be rejected and vice versa.

In this case the null hypothesis value is:

<em>H</em>₀: μ₁ - μ₂ = 0.

If the value 0 is not included in the (1 - <em>α</em>)% confidence interval for the difference between two means, then the null hypothesis will be rejected.

Thus the statement, (1- <em>α</em>)% confidence interval for (μ1- μ2) does not contain zero is TRUE.

5 0
3 years ago
Juan completed the table below. what mistake did Juan make?
Margaret [11]
For me is D........
Im not shure
3 0
3 years ago
The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.
il63 [147K]

Answer:

2

Step-by-step explanation:

If the common difference is d we can write:

-5 + 9d = 13

9d = 18

d = 2

3 0
3 years ago
Read 2 more answers
Find the equation of the line that cuts through (0,5) and (1,2)?
MArishka [77]

The equation of the line that cuts through (0,5) and (1,2) is y = -3x + 5

<h3><u>Solution:</u></h3>

Given that we have to find equation of the line that cuts through (0,5) and (1,2)

The equation of line passing through points (x_1, y_1) and (x_2, y_2) is given as:

y - y_1 = m(x - x_1)

Where "m" is the slope of line

Let us first find slope of line

<em><u>The slope of line is given as:</u></em>

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

\text{ Substituting }  (x_1, y_1) = (0, 5) \text{ and } (x_2, y_2) = (1, 2)

m=\frac{2-5}{1-0}=-3

<em><u>Thus the required equation of line is:</u></em>

y - 5 = -3(x - 0)\\\\y - 5 = -3x\\\\y = -3x + 5

Thus the equation of line is found

3 0
3 years ago
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