\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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C
⌫
\(\pi\)
e
!
←
→
(
)
\(\sqrt{\,}\)
\(a^{b}\)
7
8
9
\(\div\)
\(\frac{a}{b}\)
ln
4
5
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\(\times\)
cos
cos⁻¹
1
2
3
-
sin
sin⁻¹
0
.
=
+
tan
tan⁻¹
Over the last 6 days, I spent these amounts on lunch: \(8\), \(12\), \(10\), \(15\), \(9\), and \(11\).
Find the mean cost:
7
8
9
4
5
6
1
2
3
C
0
.
dollars
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