Answer:
B) {x| x<-12 or x>-6}
Step-by-step explanation:
-2/3x>8
change -2/3 as -3/2 and multiply both sides by -3/2x
-2/3x•(-2/3)x<-3/2•8
calculate
reduce
x<-3•4
multiply numbers
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x<-12
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now we're done with the first equation, let's do the other equation to find the answer!
-2/3x<4
multiply both sides by -3/2 and again change -2/3 by -3/2
-3/2•(-2/3)x>-3/2•4
calculate
reduce
x>-3•2
multiply numbers
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x>-6
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(x,y)--->(-x,y) should be it
Answer:
6.66
Step-by-step explanation:
20 / 3 = 6.666....
It is approximately be written as 6.66
Answer:
∠ ACD = 130°
Step-by-step explanation:
∠ ABC = 180° - 120° = 60° ( adjacent angles on a straight line )
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ ACD is an exterior angle of the triangle , then
∠ ACD = 70° + 60° = 130°
