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|x-2|gt3 {:("Quantity A","Quantity B")...

`|x-2|gt3`
`{:("Quantity A","Quantity B"),("The minimum possible value of","The minimum possible value of"),(|x-3.5|,|x-1.5|):}`

A

Quantity A is greater.

B

Quantity B is greater.

C

The two quantities are equal.

D

The relationship cannot be determined from the infromation given.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the inequality \( |x - 2| > 3 \) and compare the minimum possible values of \( |x - 3.5| \) and \( |x - 1.5| \), we can follow these steps: ### Step 1: Solve the inequality \( |x - 2| > 3 \) The expression \( |x - 2| > 3 \) can be split into two cases: 1. \( x - 2 > 3 \) 2. \( x - 2 < -3 \) **For the first case:** \[ x - 2 > 3 \implies x > 5 \] **For the second case:** \[ x - 2 < -3 \implies x < -1 \] Thus, the solution to the inequality \( |x - 2| > 3 \) is: \[ x < -1 \quad \text{or} \quad x > 5 \] ### Step 2: Analyze \( |x - 3.5| \) Next, we need to find the minimum value of \( |x - 3.5| \) given the intervals \( x < -1 \) or \( x > 5 \). - For \( x < -1 \): - The closest point to \( 3.5 \) in this interval is \( -1 \). - Thus, \( |x - 3.5| \) at \( x = -1 \) is: \[ |-1 - 3.5| = |-4.5| = 4.5 \] - For \( x > 5 \): - The closest point to \( 3.5 \) in this interval is \( 5 \). - Thus, \( |x - 3.5| \) at \( x = 5 \) is: \[ |5 - 3.5| = |1.5| = 1.5 \] The minimum value of \( |x - 3.5| \) is therefore: \[ \min(4.5, 1.5) = 1.5 \] ### Step 3: Analyze \( |x - 1.5| \) Now, we find the minimum value of \( |x - 1.5| \) under the same conditions. - For \( x < -1 \): - The closest point to \( 1.5 \) in this interval is \( -1 \). - Thus, \( |x - 1.5| \) at \( x = -1 \) is: \[ |-1 - 1.5| = |-2.5| = 2.5 \] - For \( x > 5 \): - The closest point to \( 1.5 \) in this interval is \( 5 \). - Thus, \( |x - 1.5| \) at \( x = 5 \) is: \[ |5 - 1.5| = |3.5| = 3.5 \] The minimum value of \( |x - 1.5| \) is therefore: \[ \min(2.5, 3.5) = 2.5 \] ### Step 4: Compare the two quantities Now we have: - Quantity A: Minimum value of \( |x - 3.5| = 1.5 \) - Quantity B: Minimum value of \( |x - 1.5| = 2.5 \) Since \( 1.5 < 2.5 \), we conclude that: \[ \text{Quantity B is greater than Quantity A.} \] ### Final Answer The correct option is: **B: Quantity B is greater.**
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