Question

E the problem

13) In a milling operation, the thickness of the metal bars that can be produced satisfies the inequality
Ix-1.971 1.38. What range of thicknesses corresponds to this inequality?
A) (1.38, 1.971
B) (0.59,6.71
C)[0.3, 335)
D) 10.59.3.357​

Answer 1

D) (0.59, 3.35)​

Explanation:

The inequality for the thickness of the metal bars is:

`|x-1.971| \leq1.38`

In order for this inequality to be true, the following conditions must be met:

`x-1.971 \leq1.38\\x-1.971 \geq -1.38`

The range of thickness "x" that fits the inequality is:

`x -1.971 \leq1.38\\x\leq 3.351\\x-1.971 \geq -1.38\\x\geq 0.591\\0.59\leq x\leq 3.35`

Thickness ranges from 0.59 to 3.35 units.