What must be the value of x so that lines c and d are parallel lines cut by transversal p?

Mathematics

2 answers:

spin [16.1K]2 years ago

8 0

Check the picture below.

since "y" and 3x+45 are both linear angles, then y + (3x + 45) = 180.

but wait a second!! "y" is a corresponding angle to 81°, so y = 81° then, therefore,

$\bf y+(3x+45)=180\implies 81+(3x+45)=180
\\\\\\
126+3x=180
\implies 
3x=54\implies x=\cfrac{54}{3}\implies x=18$

and that can only happen, if c || d.

UkoKoshka [18]2 years ago

3 0

18 is the correct answer

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The standard deviation measures how close the set of data is to the mean value of the data set. If data set have high standard deviation than the values are spread out very much. If data set have small standard deviation the data points are very close to the mean.

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