Evaluate
40.25
Factor
\frac{7 \cdot 23}{2 ^ {2}} = 40\frac{1}{4} = 40.25
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3.5+1.5+3+4+4+2+1+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 2 and 1.5 to get 3.5.
5+3+4+4+2+1+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 3.5 and 1.5 to get 5.
8+4+4+2+1+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 5 and 3 to get 8.
12+4+2+1+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 8 and 4 to get 12.
16+2+1+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 12 and 4 to get 16.
18+1+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 16 and 2 to get 18.
19+1+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 18 and 1 to get 19.
20+1+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 19 and 1 to get 20.
21+1+0.75+0.75+0.75+8+1.5+1.5+5
Add 20 and 1 to get 21.
22+0.75+0.75+0.75+8+1.5+1.5+5
Add 21 and 1 to get 22.
22.75+0.75+0.75+8+1.5+1.5+5
Add 22 and 0.75 to get 22.75.
23.5+0.75+8+1.5+1.5+5
Add 22.75 and 0.75 to get 23.5.
24.25+8+1.5+1.5+5
Add 23.5 and 0.75 to get 24.25.
32.25+1.5+1.5+5
Add 24.25 and 8 to get 32.25.
33.75+1.5+5
Add 32.25 and 1.5 to get 33.75.
35.25+5
Add 33.75 and 1.5 to get 35.25.
40.25
Add 35.25 and 5 to get 40.25.
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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}