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bezimeni [28]
3 years ago
14

Math matrix with variable

Mathematics
1 answer:
masya89 [10]3 years ago
8 0

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What is the volume of a pentagonal prism that has a base area of 5.16 cm2 and a height of 9 cm?
strojnjashka [21]
The volume of a pentagonal prism that has a base area of 5.16 cm^2 and a height of 9cm is 46.44cm^3

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4 0
3 years ago
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I need help on this question please
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3 years ago
The following data values represent a sample. What is the variance of the
xeze [42]

Answer:

The variance of the data is 15.

σ² = 15

Step-by-step explanation:

The mean is given as

X = 8

х        |    (x - X)    |    (x - X) ²

12       |        4         |    16

9        |        1         |     1    

11        |        3         |    9

5       |        -3        |    9

3       |        -5        |    25

The variance is given by

\sigma^2 = \frac{1}{n-1}  \sum (x - X)^2

\sigma^2 = \frac{1}{5 - 1}  (16 + 1 + 9 + 9 +25) \\\\\sigma^2 = \frac{1}{4} ( 16 + 1 + 9 + 9 +25) \\\\\sigma^2 = \frac{1}{4}  (60) \\\\\sigma^2 = 15

Therefore, the variance of the data is 15.

7 0
3 years ago
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sergij07 [2.7K]

Answer:

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Step-by-step explanation:

Well, if you solve the equation in the question, you derive 60.

So, solve all of the equations in the answer, and you find that the last answer choice is the only one that equals 60.

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7 0
4 years ago
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write in algorithm and draw a flowchart to calculate the factorial of a number (N). verify your results by a trace table by assuming N=5

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3 years ago
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