Which is the discriminant of 2x2 - 4x + 7 = 0
1 answer:
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Answer:
The dispensing unit worth today: $21,000
Step-by-step explanation:
If we assume that a year has elapsed since the dispensing unit was purchased, then we know that it has lost 25% of its initial value.
If its initial value was 28,000 then we calculate 25% of 28,000
Now we subtract 7000 from the initial amount to get the current value.
The current value is: