\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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C
(
)
⌫
π
e
7
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9
\(\div\)
\(\sqrt{\,}\)
\(a^{b}\)
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\(\times\)
\(\frac{a}{b}\)
ln
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-
cos
cos⁻¹
0
.
=
+
sin
sin⁻¹
←
→
!
tan
tan⁻¹
Find the time required for an original investment of \(\dollar 6\,000\) to earn \(\dollar 720\) in interest at an interest rate of \(4\pourcent\) per year.
7
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4
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1
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C
0
.
years
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