Question

Given the replacement set: m={1.2, 2.2, 3.2} Which inequality is true? m+7≥8.2 m+3<4.2 m−7≥8.2 m−3>4.2

Answer 1

m+7≥8.2

Explanation:

Given the replacement set : m={1.2, 2.2, 3.2}

Testing the inequalities :

m+7≥8.2:

1.2 + 7 ≥ 8.2

2.2 + 7 ≥ 8.2

1.2 + 7 ≥ 8.2

m+3<4.2

1.2 + 3 < 4.2 = 4.2 < 4.2 (false)

m−7≥8.2

1.2 - 7 ≥ 8.2 ; - 5.8 ≥ 8.2 (false)

m−3>4.2

1.2 - 3 > 4.2 ; - 1.8 > 4.2 ( false)

Tbe inequality condition has to be true for all values in the replacement set, m