![subject](/tpl/images/cats/mat.png)
Mathematics, 23.10.2019 23:00 cxmochaa
2. exercise 18, 19 page 188. determine if the following statements are true. if a statement is true, give a proof from the definitions. if a statement is false, give a counterexample.
(a) if r and s are rational numbers, then (r+s)/2 is rational.
(b) for all real numbers a and b, if a < b then a < (a+b)/2 < b
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:30, TheOneandOnly003
Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:50, Felicitybuckman
What is the square root of 45? (step by step working plz)
Answers: 1
![image](/tpl/images/cats/mat.png)
You know the right answer?
2. exercise 18, 19 page 188. determine if the following statements are true. if a statement is true,...
Questions in other subjects:
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 04:23
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 04:23
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 04:23
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 04:23