Evaluate
28.31
Factor
\frac{19 \cdot 149}{2 ^ {2} \cdot 5 ^ {2}} = 28\frac{31}{100} = 28.31
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10.35+2\times 3.49+4.99+5.99
Multiply 3 and 3.45 to get 10.35.
10.35+6.98+4.99+5.99
Multiply 2 and 3.49 to get 6.98.
17.33+4.99+5.99
Add 10.35 and 6.98 to get 17.33.
22.32+5.99
Add 17.33 and 4.99 to get 22.32.
28.31
Add 22.32 and 5.99 to get 28.31.
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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
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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}