Evaluate
9.5
Factor
\frac{19}{2} = 9\frac{1}{2} = 9.5
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\frac{18.8+9.6+9.4+9.7}{5}
Add 9.4 and 9.4 to get 18.8.
\frac{28.4+9.4+9.7}{5}
Add 18.8 and 9.6 to get 28.4.
\frac{37.8+9.7}{5}
Add 28.4 and 9.4 to get 37.8.
\frac{47.5}{5}
Add 37.8 and 9.7 to get 47.5.
\frac{475}{50}
Expand \frac{47.5}{5} by multiplying both numerator and the denominator by 10.
\frac{19}{2}
Reduce the fraction \frac{475}{50} to lowest terms by extracting and canceling out 25.
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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}