2 years ago

Solve using substitution. y = -10x-10 y = -3x + 4

1 answer:

4 0

-10x-10 = -3x+4
+3x +3x
————————
-7x-10 = 4
+10 +10
————————
-7x = 14
then divide -7 on both side of the equal sign
you’ll get x=-2

then plug in -2 as x into one of the equations ( it doesn’t matter which one)

y= -10(-2)-10 = 20-10= 10

so y=10

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draw a large triangle with three acute angles. construct the angle bisector of all three angles of triangle.

IceJOKER [234]

Answer:

The angle bisector is construct.

Step-by-step explanation:

We used the geogebra.org site. We first constructed a large triangle with acute angles. Then from point A we made a semicircular section to its sides. At the intersection of the sides and the semicircular section, we construct two circles so that they intersect. Then from the point A we draw a line through the intersection of the circles and thus we obtain the bisector of the angle.

We repeat the same procedure for point B and for point C. In this way, we obtain a bisector for all angles of a triangle.