<span>If logc81=2 then c=9
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Answer:
is this on edulastic? if you have the option check answer put 12 and let me know if it was right please.
The sum of angles in a triangle is 180 degrees.
Therefore: 2x + 3x + 4x = 180
9x = 180 Divide both sides by 9
9x/9 = 180/9
x = 20
x = 20°
The answer is 24
explanation:
x - 19 = y
-6y = -30
y = -30 ÷ -6 = 5
by substituting in the first equation
x -19 = y
x - 19 = 5
x = 5 + 19 = 24