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ycow [4]
3 years ago
7

WILL GIVE BRAINLIEST!!!! A: 122 B:90 C:48 D:180

Mathematics
1 answer:
SashulF [63]3 years ago
4 0

Answer:

A: 122

Step-by-step explanation:

The measure of the exterior angle a is  the sum of the opposite angles inside the triangle.

Angle A  = 90+ 32

                = 122

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Step-by-step explanation:

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The table is missing in the question. The table is attached below.

Solution :

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The regression line is :

$\hat Y = 452.0841+12.3267 X$

To estimate the error variance, we have:

Error variance, $\sigma =\sqrt{\frac{\sum (Y-\hat Y)^2}n-2{}}$

                           $=\sqrt{\frac{587682.3}{15-2}}$

                            $=212.6178$

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