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ELEN [110]
2 years ago
5

Please help me:(:(:(:(

Mathematics
1 answer:
motikmotik2 years ago
5 0

Answer:

1. 30/14

2. -26.775

3. 0.1668

4. -44/7 which can be simplified into -6 and -2/7

5. $10.96

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Since each square will have an area of 4 cm^2 because they are congruent, then let’s find the side length of them.

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swat32

Answer:

a) Mean = $121

Sum of deviations = $0

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Step-by-step explanation:

We are given the following data:

$91 , $176 , $108 , $115 , $56 , $157 , $144

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Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{847}{7} = 121

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b) range, variance, and standard deviation

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

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Sum of square of differences =

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\sigma = \sqrt{\dfrac{10180}{6}} = 41.19\\\\\sigma^2 = 1696.67

Sorted data: 56, 91, 108, 115, 144, 157, 176

Range = Maximum - Minimum

Range = 176 - 56 = 120

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Answer:

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Step-by-step explanation:its C though

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3 years ago
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X=10 and y=5 so it's the first option
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