Question

СРОЧНО!!! Известно, что 12<a<20; 3<b<18. Оцените значение выражения: 1) 2a-(b/3);2) (4/a)-b.Пожалуйста помогите, буду очень благодарен!! ☺️​

Answer 1

Ответ:

Объяснение:

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Answer 2

Evaluating the Expression:

Given the inequalities 12 < a < 20 and 3 < b < 18, we need to evaluate the following expressions: 1) 2a - (b/3) 2) (4/a) - b

Let's start by evaluating each expression step by step.

Evaluating 2a - (b/3):

First, let's find the range of possible values for 2a and (b/3) using the given inequalities: - For 2a: - When a = 12, 2a = 24 - When a = 20, 2a = 40 - For (b/3): - When b = 3, (b/3) = 1 - When b = 18, (b/3) = 6

So, the range of possible values for 2a - (b/3) is from 24 - 6 to 40 - 1, which is 18 to 39.

Evaluating (4/a) - b:

Next, let's find the range of possible values for (4/a) and b using the given inequalities: - For (4/a): - When a = 12, (4/a) = 4/12 = 1/3 - When a = 20, (4/a) = 4/20 = 1/5 - For b: - When b = 3, b = 3 - When b = 18, b = 18

So, the range of possible values for (4/a) - b is from 1/5 - 18 to 1/3 - 3, which is approximately -17.8 to -2.7.

Conclusion:

- The range of possible values for 2a - (b/3) is from 18 to 39. - The range of possible values for (4/a) - b is approximately -17.8 to -2.7.

I hope this helps! If you have any further questions or need additional assistance, feel free to ask.