Polly has $80,000 in a savings account that earns 1% annually. The interest is not compounded. How much will she have in 1 year?
1 answer:
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Answer:
x = ± 12
Step-by-step explanation:
Given
f(x) = x² - 144
To find the roots set f(x) = 0, that is
x² - 144 = 0 ( add 144 to both sides )
x² = 144 ( take the square root of both sides )
x = ± = ± 12