Mathematics, 19.10.2019 11:30 libi052207

In the figure above lines l and m are parallel, y = 20 and z= 60, what is the value of x equal to?

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Answer from: kasper04

x=100 Because lines L and M are parallel, that makes the large and small triangles similar triangles where all of the corresponding angles between the two triangles are identical. So both triangles have angles with the values x, y, and z. Since the sum of all the angles in a triangle add up to 180, we have the following equation: x + y + z = 180 Now substitute the known values, getting: x + y + z = 180 x + 20 + 60 = 180 And solve for x: x + 20 + 60 = 180 x + 80 = 180 x = 100 So the value of x is 100.

Answer from: BigCra

Following the given figure, lines L and M are parallel with y = 20 and z= 60 , the value of is $100^{0}$ .

According to the question,

$l\parallel m$

$y=20\;degree \\z=60\;degree$

$\angle ABC=y$ (Corresponding angle)

$\angle ABC=20$ degree

In triangle ABC

$x+z+\angle ABC=180$ degree (Sum of the angles of traingles)

x+20+60=180 degree

x=180-80 degree

x=100 degree.

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Answer from: Quest

where is the rest of the

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Answer from: Quest

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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