Evaluate
27.8
Factor
\frac{139}{5} = 27\frac{4}{5} = 27.8
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9.9+4.3+4.5+5.1+4
Add 5.1 and 4.8 to get 9.9.
14.2+4.5+5.1+4
Add 9.9 and 4.3 to get 14.2.
18.7+5.1+4
Add 14.2 and 4.5 to get 18.7.
23.8+4
Add 18.7 and 5.1 to get 23.8.
27.8
Add 23.8 and 4 to get 27.8.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}