Đề thi HK2 Toán 9 - Quận 9 - TP Hồ Chí Minh - Năm...

A $S = \left\{ {1;\,\frac{5}{2}} \right\}.$

B $S = \left\{ { - 1;\,\frac{5}{2}} \right\}.$

C $S = \left\{ {1;\, - \frac{5}{2}} \right\}.$

D $S = \left\{ { - 1;\, - \frac{5}{2}} \right\}.$

A $S = \left\{ { - 9;\,\,9} \right\}.$

B $S = \left\{ { - 2;\,\,2} \right\}.$

C $S = \left\{ { - 3;\,\,3} \right\}.$

D $S = \left\{ { - \sqrt 3 ;\,\,\sqrt 3 } \right\}.$

A $100{m^2}$

B $120{m^2}$

C $150{m^2}$

D $180{m^2}$

A $2)\,\,m =  - 1,\,\,m = 2$

B $2)\,\,m = 1,\,\,m =  - 2$

C $2)\,\,m = 1,\,\,m = 2$

D $2)\,\,m =  - 1,\,\,m =  - 2$

A $b)\,\,\left( { - 1;\frac{1}{2}} \right);\,\,\,\left( {2;\,2} \right).$

B $b)\,\,\left( {1;\frac{1}{2}} \right);\,\,\,\left( {2; - 2} \right).$

C $b)\,\,\left( { - 1; - \frac{1}{2}} \right);\,\,\,\left( { - 2;\,2} \right).$

D $b)\,\,\left( {1; - \frac{1}{2}} \right);\,\,\,\left( { - 2;\, - 2} \right).$

A 50 g

B 100 g

C 150 g

D 180 g

A 120.000.000 đồng.

B 150.000.000 đồng.

C 80.000.000 đồng.

D 100.000.000 đồng.