Evaluate
21.2
Factor
\frac{2 \cdot 53}{5} = 21\frac{1}{5} = 21.2
Share
Copied to clipboard
8.5+2.5+2.95+2.95+2.15+2.15
Add 4.25 and 4.25 to get 8.5.
11+2.95+2.95+2.15+2.15
Add 8.5 and 2.5 to get 11.
13.95+2.95+2.15+2.15
Add 11 and 2.95 to get 13.95.
16.9+2.15+2.15
Add 13.95 and 2.95 to get 16.9.
19.05+2.15
Add 16.9 and 2.15 to get 19.05.
21.2
Add 19.05 and 2.15 to get 21.2.
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}