Evaluate
3.09
Factor
\frac{3 \cdot 103}{2 ^ {2} \cdot 5 ^ {2}} = 3\frac{9}{100} = 3.09
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\frac{9.6+2.7+3+3.3+4+3.7+2.3+2.3}{10}
Multiply 3.2 and 3 to get 9.6.
\frac{12.3+3+3.3+4+3.7+2.3+2.3}{10}
Add 9.6 and 2.7 to get 12.3.
\frac{15.3+3.3+4+3.7+2.3+2.3}{10}
Add 12.3 and 3 to get 15.3.
\frac{18.6+4+3.7+2.3+2.3}{10}
Add 15.3 and 3.3 to get 18.6.
\frac{22.6+3.7+2.3+2.3}{10}
Add 18.6 and 4 to get 22.6.
\frac{26.3+2.3+2.3}{10}
Add 22.6 and 3.7 to get 26.3.
\frac{28.6+2.3}{10}
Add 26.3 and 2.3 to get 28.6.
\frac{30.9}{10}
Add 28.6 and 2.3 to get 30.9.
\frac{309}{100}
Expand \frac{30.9}{10} by multiplying both numerator and the denominator by 10.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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}