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Nimfa-mama [501]
3 years ago
8

What is the missing length

Mathematics
1 answer:
9966 [12]3 years ago
8 0

Answer: C)14

Step-by-step explanation:

What i did i know it sounds weird but if 7 + 4 = 11 looks smaller than ? then it has to be 14 i used a ruler. my teacher told me the answer

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3 years ago
The cost of a student ticket is $7 write a equation that correctly relates the total cost
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3 years ago
Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5
Ugo [173]

Answer:

s^2 = 0.01

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}

First, we calculate the mean

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

\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}

\overline x = \frac{7.4}{4}

\overline x = 1.85

s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1} becomes

s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}

s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}

s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}

s^2 = \frac{0.03}{3}

s^2 = 0.01

<em>Hence, the variance is 0.01</em>

5 0
2 years ago
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B is not geometric because it is an arithmetic sequence. 

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So, your answer should be B and D.
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3 years ago
Find the equation of the vertical line through (7,-3)
wlad13 [49]
X = 7
Is a vertical line that passes through (7,-3).
4 0
3 years ago
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