Evaluate
24.6
Factor
\frac{3 \cdot 41}{5} = 24\frac{3}{5} = 24.6
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2+20\times 0.32+30\times 0.3+40\times 0.18
Multiply 10 and 0.2 to get 2.
2+6.4+30\times 0.3+40\times 0.18
Multiply 20 and 0.32 to get 6.4.
8.4+30\times 0.3+40\times 0.18
Add 2 and 6.4 to get 8.4.
8.4+9+40\times 0.18
Multiply 30 and 0.3 to get 9.
17.4+40\times 0.18
Add 8.4 and 9 to get 17.4.
17.4+7.2
Multiply 40 and 0.18 to get 7.2.
24.6
Add 17.4 and 7.2 to get 24.6.
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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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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}