Enrhifo
108.5
Ffactor
\frac{7 \cdot 31}{2} = 108\frac{1}{2} = 108.5
Rhannu
Copïo i clipfwrdd
19+95\times 0.3+80\times 0.2+150\times 0.3
Lluosi 95 a 0.2 i gael 19.
19+28.5+80\times 0.2+150\times 0.3
Lluosi 95 a 0.3 i gael 28.5.
47.5+80\times 0.2+150\times 0.3
Adio 19 a 28.5 i gael 47.5.
47.5+16+150\times 0.3
Lluosi 80 a 0.2 i gael 16.
63.5+150\times 0.3
Adio 47.5 a 16 i gael 63.5.
63.5+45
Lluosi 150 a 0.3 i gael 45.
108.5
Adio 63.5 a 45 i gael 108.5.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
Matrics
\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]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}