Question

Помогите пожалуйста 2. Какое из следующих множеств А={2,4} ; B={3, 5, 10}; C=(5,7,12};D={1, 13} является подмножеством множества F={1,3,5,7.9.12) ? A) A B) B €) C D) D 3. Какую цифру нужно записать вместо * чтобы выполнилось неравенство 2.113> 2,1*3? ​ Смотреть ответ ba150481ba ba150481ba Ответ: 2. С) Вместо* нужно записать 0

Answer 1

Answer

1. The set C = {5, 7, 12} is a subset of the set F = {1, 3, 5, 7, 9, 12}.

2. To make the inequality 2.113 > 2.1 * 3 true, you need to replace the * with 0.

Explanation

1. To determine if a set is a subset of another set, we need to check if all the elements of the first set are also present in the second set. Let's analyze each option:

- Option A = {2, 4}: None of the elements in set A are present in set F, so A is not a subset of F. - Option B = {3, 5, 10}: The elements 3 and 5 are present in set F, but 10 is not. Therefore, B is not a subset of F. - Option C = {5, 7, 12}: All the elements in set C are present in set F, so C is a subset of F. - Option D = {1, 13}: The element 1 is present in set F, but 13 is not. Therefore, D is not a subset of F.

Based on the analysis, the set C = {5, 7, 12} is the only subset of the set F = {1, 3, 5, 7, 9, 12}.

[[1]]

2. The inequality 2.113 > 2.1 * 3 can be simplified by performing the multiplication on the right side:

2.113 > 6.3

To make this inequality true, we need to find a number to replace the * that results in a value less than 2.113. By trying different numbers, we find that replacing * with 0 gives us:

2.113 > 2.1 * 3 2.113 > 2.1 * 0 2.113 > 0

Since 2.113 is greater than 0, the inequality is true when * is replaced with 0.

[[2]]

I hope this helps! Let me know if you have any further questions.