The marked price of a phone is $160. If a 30% discount is being offered, what is the discounted price of the phone?
1 answer:
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Answer:
x = ± 2
Step-by-step explanation:
given
40 - x² = 0 ( add x² to both sides )
40 = x² or
x² = 40 ( take the square root of both sides )
x = ± = ±
= ± 2
Answer:
The answer is A. a translation right 2 units
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