Whakaoti mō a
a\leq -35
Tohaina
Kua tāruatia ki te papatopenga
3.2a+67.5-2.7a\leq 50
Whakamahia te āhuatanga tohatoha hei whakarea te 2.7 ki te 25-a.
0.5a+67.5\leq 50
Pahekotia te 3.2a me -2.7a, ka 0.5a.
0.5a\leq 50-67.5
Tangohia te 67.5 mai i ngā taha e rua.
0.5a\leq -17.5
Tangohia te 67.5 i te 50, ka -17.5.
a\leq \frac{-17.5}{0.5}
Whakawehea ngā taha e rua ki te 0.5. I te mea he tōrunga te 0.5, kāore e huri te ahunga koreōrite.
a\leq \frac{-175}{5}
Whakarohaina te \frac{-17.5}{0.5} mā te whakarea i te taurunga me te tauraro ki te 10.
a\leq -35
Whakawehea te -175 ki te 5, kia riro ko -35.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\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]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}