Evaluate
55.5
Factor
\frac{3 \cdot 37}{2} = 55\frac{1}{2} = 55.5
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18+6+2+3+2+1+2+5+2+2+3+4+3+2.5
Add 10 and 8 to get 18.
24+2+3+2+1+2+5+2+2+3+4+3+2.5
Add 18 and 6 to get 24.
26+3+2+1+2+5+2+2+3+4+3+2.5
Add 24 and 2 to get 26.
29+2+1+2+5+2+2+3+4+3+2.5
Add 26 and 3 to get 29.
31+1+2+5+2+2+3+4+3+2.5
Add 29 and 2 to get 31.
32+2+5+2+2+3+4+3+2.5
Add 31 and 1 to get 32.
34+5+2+2+3+4+3+2.5
Add 32 and 2 to get 34.
39+2+2+3+4+3+2.5
Add 34 and 5 to get 39.
41+2+3+4+3+2.5
Add 39 and 2 to get 41.
43+3+4+3+2.5
Add 41 and 2 to get 43.
46+4+3+2.5
Add 43 and 3 to get 46.
50+3+2.5
Add 46 and 4 to get 50.
53+2.5
Add 50 and 3 to get 53.
55.5
Add 53 and 2.5 to get 55.5.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}