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Blababa [14]
3 years ago
5

What are the coordinates of point A after a 180 degree rotation about the origin? Picture Attached.

Mathematics
1 answer:
grigory [225]3 years ago
5 0
The answer is B) (-1,-2)
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In a sample of n = 6 scores, 5 of the scores are each above the mean by one point. Where is the 6th score located relative to th
den301095 [7]

The mean of a dataset is the sum of all data elements divided by the count of the elements.

The location of the 6th score relative to the mean is 5 points below the mean

Let:

\bar x \to<em> Mean</em>

a \to<em> 5 scores</em>

b \to<em> 6th scores</em>

Given that:

n = 6

The 5 scores that are 1 above the mean implies that:

a = \bar x + 1

The mean of a dataset is calculated using:

\bar x = \frac{\sum x}{n}

So, we have:

\bar x =\frac{5a + b}{6}

\bar x =\frac{5(\bar x + 1) + b}{6}

Open brackets

\bar x =\frac{5\bar x + 5 + b}{6}

Multiply both sides by 6

6\bar x =5\bar x + 5 + b

Make b the subject

b = 6\bar x -5\bar x - 5

b = \bar x - 5

This means that the 6th score is 5 points below the mean

Read more about mean at:

brainly.com/question/17060266

3 0
2 years ago
I need help with a question
postnew [5]

Solution

The range is defined as:

Range = Max - Min

For this case we can conclude that the best solution would be:

B, C

7 0
1 year ago
Is the inequality always, sometimes, or never true?<br> 3x - 14 &lt; 3(x-5)
lys-0071 [83]

Answer:

3x - 14 < 3x - 15

-14 < -15

never true

Step-by-step explanation:

8 0
3 years ago
Mai conducted an experiment by flipping a fair coin 200 times. The coin landed heads up 110 times. Which statement about
Nitella [24]
Answer:

B

Explanation:

Theoretical probability is a method to express the likelihood that something will occur. It is calculated by dividing the number of favorable outcomes by the total possible outcomes.

The empirical probability, relative frequency, or experimental probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space but in an actual experiment.
8 0
3 years ago
Read 2 more answers
Can someone clearly and correctly work out and show me how to answer QUESTION 19 AND 20??
Rudiy27
Is this a simultaneous equation question?
6 0
3 years ago
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