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Answer:
a = 127°
Step-by-step explanation:
The 3 angles lie on a straight line and have a sum of 180°, that is
15° + a + 38° = 180°
53° + a = 180° ( subtract 53° from both sides )
a = 127°
Answer:
a number which produces a specified quantity when multiplied by itself.
Step-by-step explanation:
7 is a square root of 49"
Yy^2 I'm pretty sure is the answer!