Flipping a tail on a coin and spinning a 5 on a spinner with sections of equal area numbered 1-5
1 answer:
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Answer:
x = ± 6
Step-by-step explanation:
Given
x² - 72 = 0 ( add 72 to both sides )
x² = 72 ( take the square root of both sides )
x = ± = ±
= ± 6