Can someone help me with this
1 answer:
Answer:
Yes
sum of angle = 180°
First diagram
R+D+E=180°
110°+28°+E=180°
138°+E=180°
E=180°-138°
E=42°
Second diagram
T+V+A=180°
T+28°+42°=180°
T+70°=180°
T=180°-70°
T=110°
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-1 is the answer to your question
Answer:
x2 + 7x + x2 + 7x + 9 = 3
, that is D
when multiplying like variables add the exponents
= 
=
X^2 + 8x + 7 = 0
x^2 + 7x + x + 7 = 0
x(x + 7) + 1(x + 7) = 0
(x + 7) (x + 1) = 0
x = -7 or x = -1
