Evaluate
50.8
Factor
\frac{2 \cdot 127}{5} = 50\frac{4}{5} = 50.8
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6.8+11.2+1.9+14.5+2.2+4.8+9.4
Add 3.6 and 3.2 to get 6.8.
18+1.9+14.5+2.2+4.8+9.4
Add 6.8 and 11.2 to get 18.
19.9+14.5+2.2+4.8+9.4
Add 18 and 1.9 to get 19.9.
34.4+2.2+4.8+9.4
Add 19.9 and 14.5 to get 34.4.
36.6+4.8+9.4
Add 34.4 and 2.2 to get 36.6.
41.4+9.4
Add 36.6 and 4.8 to get 41.4.
50.8
Add 41.4 and 9.4 to get 50.8.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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}