Answer:
5.5
Step-by-step explanation:
5.5+5.5=11 11-2=9
Answer:
Step-by-step explanation:
2x^2 + 6x - 4 = 0
Answer:
12
Step-by-step explanation:
A² + B² = C²
9² + B² = 15²
81 + B² = 225
B² = 144
B = 12
Answer:
(2, 1) (1, 5) and (4, 3)
Step-by-step explanation:
Basically switch the x and y axes, and depending on the quadrant, switch the negative and positive signs to their appropriate ones.
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