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Greeley [361]
3 years ago
8

What is the slope of a line segment PQ with coordinates P(-2.5) and Q(-1,1)? show your work.

Mathematics
2 answers:
PolarNik [594]3 years ago
8 0

Answer:

-4

Step-by-step explanation:

<u>Given</u>

  • Line segment PQ with points P(-2.5) and Q(-1,1)
  • Slope = ?

<u>Slope formula</u>

  • m = (y₂ - y₁)/(x₂ - x₁)
  • m = (1 - 5)/(-1 - (-2)) = -4/1 = -4
  • Slope is -4
lisov135 [29]3 years ago
4 0

We can use the given points to solve.

Slope formula: y2-y1/x2-x1

(1-5)/-1-(-2))

-4/1

-4

Best of Luck!

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Emily buys a dress for ?48 and adds 25% onto the price before putting it into her shop window what price does he price tag say i
Maurinko [17]

Answer:

$60

Step-by-step explanation:

$48 x 25% = $12

$48+$12 =$60

6 0
3 years ago
Which surveys would a sample be appropriate for? Mark all that apply.
Sauron [17]

Answer:

its A and D

Step-by-step explanation:

i just took the quiz :)

4 0
3 years ago
Read 2 more answers
Courtney is twice as old as Andre and three years older than Natalie. Courtney is half Shari's age. The difference between Shari
lesantik [10]

The question does not seem complete, but I'll represent the statement mathematically and look for their ages each. This is because the worst they can ask for is their ages.

Let C stand for Courtney's age, A for Andrei's age, N for Natalie's age and S for Shari's age. From the question we can deduce the following:

C = 2A

C = N + 3

C = S/2

S - N = C + A

S = 2C, N = C - 3 and A = C/2, therefore we have

2C - (C - 3) = C + C/2

C + 3 = C + C/2

C/2 = 3 and C = 6

A = C/2

A= 6/2

A = 3

N = C - 3

N = 6 - 3

N = 3

S = 2C

S = 2 x 6

S = 12.

C = 6, A = 3, N = 3 and S = 12

8 0
3 years ago
PLEASE HELP THANK YOUUUUU
katrin [286]

Answer:

can you pop out all the boxes I need to see what the numbers are to get a further understanding

8 0
2 years ago
PLEASE HELP WILL MARK BRAINLIEST
Romashka [77]

Answer:

A.The mean would increase.

Step-by-step explanation:

Outliers are numerical values in a data set that are very different from the other values. These values are either too large or too small compared to the others.

Presence of outliers effect the measures of central tendency.

The measures of central tendency are mean, median and mode.

The mean of a data set is a a single numerical value that describes the data set. The median is a numerical values that is the mid-value of the data set. The mode of a data set is the value with the highest frequency.

Effect of outliers on mean, median and mode:

  • Mean: If the outlier is a very large value then the mean of the data increases and if it is a small value then the mean decreases.
  • Median: The presence of outliers in a data set has a very mild effect on the median of the data.
  • Mode: The presence of outliers does not have any effect on the mode.

The mean of the test scores without the outlier is:

   \bar{x}=\frac{Total of the observations-Outlier value}{n-1} \\=\frac{(86*16)-72}{15} \\=\frac{1304}{15}\\ =86.9333

*Here <em>n</em> is the number of observations.

So, with the outlier the mean is 86 and without the outlier the mean is 86.9333.

The mean increased.

Since the median cannot be computed without the actual data, no conclusion can be drawn about the median.

Conclusion:

After removing the outlier value of 72 the mean of the test scores increased from 86 to 86.9333.

Thus, the the truer statement will be that when the outlier is removed the mean of the data set increases.

4 0
3 years ago
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