BAT PHUONG TRINH MOT AN

Presentation

•

Mathematics

•

8th Grade

•

Medium

Trần Lan

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0 Slides • 6 Questions

Multiple Choice

x=3 là nghiệm của bất phương trình nào dưới đây?

x+1>4

2x-5>7

0 $\le$ 10x

2-x $\ge$ 5

Multiple Choice

Gặp biển báo này phương tiện cần đi với vận tốc là số dương x (km/h) sao cho:

x=50

x<50

x>50

x $\le$ 50

Multiple Choice

Bạn Lan được học sinh giỏi, điểm trung bình các môn của bạn Lan là x, vậy:

x tùy ý

x=8,0

x>8,0

x $\ge$ 8,0

Multiple Choice

Hình trên là hình biểu diễn tập nghiệm của bất phương trình:

x<-1,5

x $\le$ -1,5

x>-1,5

x $\ge$ -1,5

Multiple Choice

Vế trái của bất phương trình $4x+1\le x^2-3x$ là:

4x+1

$x^2-3x$

Multiple Choice

$x\le2,5$ (1), $\frac{5}{2}\ge x$ (2), $x>1$ (3), $x\ge1$ (4)

Hai bất phương trình nào tương đương?

$\left(1\right)\Longleftrightarrow\left(2\right)$

$\left(1\right)\Longleftrightarrow\left(3\right)$

$\left(3\right)\Longleftrightarrow\left(4\right)$

$\left(2\right)\Longleftrightarrow\left(4\right)$

x=3 là nghiệm của bất phương trình nào dưới đây?

x+1>4

2x-5>7

0 $\le$ 10x

2-x $\ge$ 5

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