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madam [21]
2 years ago
7

What are the coordinates of the point on the directed line segment from (-1, -1) to

Mathematics
1 answer:
Studentka2010 [4]2 years ago
7 0

The partitions involves dividing the line into subsegments

The coordinate of the point on the directed line segment is (0.5,-2)

<h3>How to partition the line?</h3>

The given parameters are:-

line segment = (-1, -1) to (5,-5)

Segment ratio = 1 : 3

The coordinates of the partition is calculated as:

(x,y) = (\frac{mx_2 + nx_1}{m+ n},\frac{my_2 + ny_1}{m+ n})

Substitute known values

(x,y) = (\frac{1 *5 + 3 * -1}{1+ 3},\frac{1 *-5 + 3 * -1}{1+ 3})

Evaluate the products

(x,y) = (\frac{2}{4},\frac{-8}{4})

Evaluate the quotients

(x,y) = (0.5,-2)

Hence, the coordinate of the partition is (x,y) = (0.5,-2)

Read more about line partitions at:

brainly.com/question/12959377

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Answer:

9.6666

Step-by-step explanation:

144 \times 1 \div 3 \div 5

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3 years ago
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Help pls thank you so much
azamat

Answer:

$179.20

Step-by-step explanation:

use the formula retail price = original price + markup

Step One: Convert 28% to a decimal

--> 0.28

Step two: Plug all the numbers into the equation

--> $140 + $140 x 0.28 = $179.20

Give brainliest if this was helpful! Thanks! Have an amazing day!

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I think that your answer is 370
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About 30% of the population cannot detect any odor when they sniff the steroid androstenone, but they can become sensitive to it
iris [78.8K]

Using the z-distribution, as we are working with a proportion, it is found that there is enough evidence to conclude that the proportion is different of 50%.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the proportion is of 0.5, that is:

H_0: p = 0.5


At the alternative hypothesis, it is tested if the proportion is different of 0.5, that is:

H_1: p \neq 0.5.

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

In which:

  • \overline{p} is the sample proportion.
  • p is the proportion tested at the null hypothesis.
  • n is the sample size.

In this problem, the parameters are:

p = 0.5, n = 12, \overline{p} = \frac{10}{12} = 0.8333

Then, the value of the test statistic is as follows:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

z = \frac{0.8333 - 0.5}{\sqrt{\frac{0.5(0.5)}{12}}}

z = 2.31

<h3>What is the decision?</h3>

Considering a <em>two-tailed test</em>, as we are testing if the proportion is different of a value, with a <em>significance level of 0.05</em>, the critical value is of |z^{\ast} = 1.96.

Since the absolute value of the test statistic is greater than the critical value for the two-tailed test, it is found that there is enough evidence to conclude that the proportion of participants that had improved androstenone-detection accuracy is different of 50%.

More can be learned about the z-distribution at brainly.com/question/26454209

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Which number is a perfect square?
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Answer:

The answer is B. 9

Step-by-step explanation:

3*3=9

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