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Triss [41]
3 years ago
5

I need to find the length of AB.HELP​

Mathematics
2 answers:
kumpel [21]3 years ago
5 0

Answer:

I cant see the entire question

Step-by-step explanation:

aalyn [17]3 years ago
3 0

Answer:

7 units

Step-by-step explanation:

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Erin found 9 cents<br> each day for 7 days.<br> How much money did<br> she find in all?
kherson [118]
After 7 days she would have eventually found 63 cents.
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3 years ago
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Solve for x and explain how you got your answer <br> 3x + 4 = 16
12345 [234]

Answer:

X = 4

Step-by-step explanation:

3x=16-4

3x= 12

X=12/3

X= 4

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3 years ago
Of the new cars in a car dealer's lot, 1 in 6 are white. Today, 4 cars were sold.
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A) 1 out of 4
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Consider a data set containing the following values: 70 65 71 78 89 68 50 75 The mean of the preceding values is 70.75. The devi
Leokris [45]

Answer:

If this is the sample data, the sample variance is 125.07 and the sample standard deviation is 11.18

If this is a population data, the population variance is 109.44 and the population standard deviation is 10.46

Step-by-step explanation:

We are given the following data-set:

70, 65, 71, 78, 89, 68, 50, 75

Deviations from the mean

–0.75, –5.75 , 0.25, 7.25, 18.25, –2.75, –20.75, 4.2

Sample size, n = 8

Sample:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.

Sum of squares of differences =

0.5625 + 33.0625 + 0.0625 + 52.5625 + 333.0625 + 7.5625 + 430.5625 + 18.0625 = 875.5

s = \sqrt{\dfrac{875.5}{7}} = 11.18

\text{ Sample variance} = s^2 = 125.07

Population:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.

Sum of squares of differences =

0.5625 + 33.0625 + 0.0625 + 52.5625 + 333.0625 + 7.5625 + 430.5625 + 18.0625 = 875.5

\sigma = \sqrt{\dfrac{875.5}{8}} = 10.46

\text{ Population variance} = \sigma^2 = 109.44

7 0
3 years ago
A line that includes the points (-10, 6) and (-9, h) has a slope of -8. What is the value of h?
Nutka1998 [239]
H=4
Hope this helps you !!!!
7 0
3 years ago
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