Question

3|х – 1| - 2|3 – y| при х = 0,7 и y = 1,7

Answer 1

3|0.7-1|-2|3-1.7|=

3|-0.3|-2|1.3|=

0.6-2.6=-2

Answer 2

To find the value of the expression 3|x – 1| - 2|3 – y| when x = 0.7 and y = 1.7, simply substitute these values into the expression and perform the calculations step by step.

Step 1: Substitute x = 0.7 3|0.7 – 1| - 2|3 – y|

Step 2: Calculate the value inside the first absolute value: 3|0.7 – 1| = 3|-0.3|

Step 3: Calculate the value inside the second absolute value: 2|3 – y| = 2|3 – 1.7|

Step 4: Perform the absolute value calculations: 3|-0.3| = 3 * 0.3 = 0.9 2|3 – 1.7| = 2 * 1.3 = 2.6

Step 5: Substitute y = 1.7 and complete the calculation: 3|0.7 – 1| - 2|3 – 1.7| = 0.9 - 2.6 = -1.7

So, the value of the expression 3|x – 1| - 2|3 – y| when x = 0.7 and y = 1.7 is -1.7.