Cho tập A gồm các số tự nhiên từ 2 đến 25. Trang bị phép toán hai ngôi sao cho ta được quan hệ tương đương, Trang bị phép toán hai ngôi sao cho ta được quan hệ thứ tự toàn phần và Trang bị phép toán hai ngôi sao cho ta được quan hệ thứ tự không toàn phần.

only 10/60 isn't equivalent

hope this : )

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

step-by-step explanation:

1

mean, 40.6

step-by-step explanation: