Which of the following values are solutions to the inequality 1-2 x>5 ? I. −5II. −2III. −8NoneI onlyII onlyIII onlyI and III and IIIII and IIII, II and III
Q. Which of the following values are solutions to the inequality 1−2x>5?I. −5II. −2III. −8NoneI onlyII onlyIII onlyI and III and IIIII and IIII, II and III
Simplify the inequality: Start by simplifying the inequality 1 - 2x > 5 to isolate the variable x. Subtract 1 from both sides of the inequality to get -2x > 4.
Divide by −2: Now, divide both sides of the inequality by −2 to solve for x. Remember that dividing by a negative number reverses the inequality sign. So, -2x / -2 < 4 / -2 gives us x < -2.
Test given values: Test each of the given values to see if they satisfy the inequality x < -2.I. For x=−5, check if -5 < -2. This is true.II. For x=−2, check if -2 < -2. This is false because −2 is not less than −2.III. For x=−8, check if -8 < -2. This is true.
Conclusion: Based on the tests in Step 3, we can conclude that the values −5 and −8 satisfy the inequality x < -2, but −2 does not. Therefore, the correct answer is "I and III".
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