Answer:
x = ± 2i
Step-by-step explanation:
The equation has no real roots, gut has complex roots
Given
x² = - 4 ( take the square root of both sides )
x = ± 
= ± 
[ Note that 
= i ]
= ± 
× = ± 2i
Increasing function value shifts the line up.
answer: 2. up
Answer:
B. x
Step-by-step explanation:
-3x+8y=-6
3x-2y=-12
if we add these
-3x+3x+8y-2y=-6-12
6y=-12 so x will be eliminated
x = 36.2 .
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Explanation:
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2x - 1 + 3x = 180 ;
Combine the "like terms" on the left-hand side of the equation:
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+2x + 3x = + 5x ;
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And rewrite:
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5x - 1 = 180 ;
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Add "1" to each side of the equation:
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5x - 1 + 1 = 180 + 1 ;
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5x = 181 ;
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Divide EACH SIDE of the equation by "5" ;
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5x / 5 = 181 / 5 ;
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to get:
_____________________________________
x = 36.2 .
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Answer:
360°
Step-by-step explanation:
It would be the same thing as finding the sum of a rectangle where all 4 angles add up to 360° or think of it as a circle where circles = to 360° (I hope this makes sense)
