keke6361

08.04.2020 • 

Mathematics

Which describes how to construct a duplicate angle?

A. Draw a starter ray, set the compass at length AB, place the compass at C, mark point D.

B. Draw a starter ray, locate point C on starter line; draw an arc with center at A that intersects both
sides of the angle; using same radius, draw an arc with center C; label points B, D, and E, draw an arc with radius BD at center E; label intersection F; draw ray CF.

C. Draw a starter ray, duplicate the line segment on the ray, duplicate each angle using the two
endpoints of the line segment as vertices of the angles: extend sides of angles.

D. Draw a starter ray, locate point C on starter line, set the compass at length AB, draw an arc with center C all the way around.

Ответ:

Karxra

02.08.2020

Mathematics

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The way you have this typed is very confusing.  You need to find 2 equations to solve for these 2 unknowns.  The first is the sum of the 2 unknowns set to equal 86: x + y = 86.  The second is y - 2x = 5 (I am defining y to be the larger of the 2 numbers here).  Solve the first equation for y:  y = 86-x.  Now sub that in for y in the second equation: 86-x-2x=5  and -3x = -81 and x = 27.  27 + y = 86, therefore, y must equal 59

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