Đề thi HK2 Toán 8 - Thành phố Thái Bình - Năm 2017...

A \(\left\{ { - 5;3} \right\}\)

B \(\left\{ {5;\frac{{ - 1}}{3}} \right\}\)

C \(\left\{ {\frac{1}{3}; - 5} \right\}\)

D \(\left\{ { - 3;5} \right\}\)

A \( - 3m <  - 3n\)            

B \(1 - m < 1 - n\)            

C \( - 7m + 2 >  - 7n + 2\)

D \(2m - 5 > 2n - 5\)

A \(2,5\,cm\)              

B \(3\,cm\)    

C \(3,5\,cm\)        

D \(4\,cm\)

A \(\frac{{25}}{{64}}\)

B \(\frac{9}{{25}}\)      

C \(\frac{5}{8}\)            

D \(\frac{3}{5}\)

A \(1.\,\,A = \left( {x - 1} \right)\left( {x - 6} \right)\)

B \(1.\,\,A = \left( {x + 1} \right)\left( {x - 6} \right)\)

C \(1.\,\,A = \left( {x - 1} \right)\left( {x + 6} \right)\)

D \(1.\,\,A = \left( {x + 1} \right)\left( {x + 6} \right)\)

A \(x = 0\)

B \(x = 1\)

C \(x = 2\)

D vô nghiệm

A \(x = \frac{4}{7}\)

B \(x = \frac{7}{4}\)

C \(x =  - \frac{4}{7}\)

D \(x =  - \frac{7}{4}\)

A 20 km

B 20 km

C 30 km

D 35 km

A \(2\)

B \(4\)

C \(5\)

D \(3\)