How many solutions does this system of equations
have?
A: Infinitely many
B: Exac...
Mathematics, 03.12.2020 19:50 foxesforlife45
How many solutions does this system of equations
have?
A: Infinitely many
B: Exactly two
C: None
D: Exactly one
Answers: 3
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If m∠abc = 70°, what is m∠abd? justify your reasoning. using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°. using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°. using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality. using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.
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