Answer:
C
Step-by-step explanation:
when putting a power to another power, then these two powers are multiplied.
so, -9 × (-x/9) = (-9 × -x) / 9 = 9x/9 = x
so, this reduces to the original
and therefore C is the right answer.
Lines AB and CD intersect at E, mLAED = 110,
2 answers:
Answer:
x = 10, y = 20
Step-by-step explanation:
Form a system of equations:
From the picture at the bottom you can see that vertical angles are equal, so:
Then, since the angles all together will add up to 360, you can do
subtract 70 from both sides
With the equation 3x + 2y = 70, multiply both sides by 2
Subtract the two equations:
Plug this into one of the original equations
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Step-by-step explanation:
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