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frez [133]
3 years ago
14

I need help finding missing angles ​

Mathematics
1 answer:
Citrus2011 [14]3 years ago
8 0

Answer:

1 = 128 degrees

2 = 52 degrees

3 = 47 degrees

4 = 133 degrees

5 = 81 degrees

Step-by-step explanation:

angle 2 and 52 degrees are corresponding angles so they are equal.

angle 3 and 47 degrees are corresponding angles so they are equal.

angles 1 and 2 are supplementary angles so their sum is 180 degrees.

angles 3 and 4 are supplementary angles so their sum is 180 degrees.

angle 5 = 180 - 52 - 47 = 81 degrees

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Step-by-step explanation:

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frozen [14]

Answer:

(1) Please find attached the graph of the data

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(3) The correlation that exist is a straight line correlation

Step-by-step explanation:

The given data are;

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(m),                    (s)  

50,                    6.1

100,                   12

150,                   18.3

200,                  25.2

250,                   31.7

(2)

Based on the linear regression formula, we have;

b = \dfrac{N\sum XY - \left (\sum X  \right )\left (\sum Y  \right )}{N\sum X^{2} - \left (\sum X  \right )^{2}}

b = \dfrac{5 \times 17215 - 93.3 \times 750}{5 \times 2156.03 -8704.89} = 7.758

a = \dfrac{\sum Y - b\sum X}{N}

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The line is

y = 7.7581×x+5.234

When t = 20 s, we have

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(3) The correlation that exist is a straight line correlation

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Where is the expression?
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