Answer:
-11/10
Step-by-step explanation:
Slope = rise/run
m = (12-1) / (-19-(-9))
m = -11/10
see the attached figure to better understand the problem
we know that
The equilateral triangle has three equal sides
so
in the equilateral triangle ABC

the height of the triangle is the segment BD
in the right triangle BCD
Applying the Pythagorean Theorem

solve for BD

substitute the values



therefore
<u>the answer is</u>
the height of the triangle is 
Answer:
Step-by-step explanation:
(200+30+5)(40+9)
40*200 = 8000
40*30= 1200
40*5=200
9*200= 1800
9*30=270
9*5=45
8000+1200+200+1800+270+45 =11515
Answer:
80/729
Step-by-step explanation:
8/18x8/18x10/18=640/5832
80/729