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Math Help - Inequality

  1. #1
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    Question Inequality

    I have 2 questions and i have their answers but i m unable to understand them.

    Q-1) x=0 is the solution of the inequality?

    Q-2) Temperatures = 4, 1, 0, -2, -1, -3, 1, -2, 3, -1
    How many of these temperatures are with in 2.5 degree C of 1 degree C ?
    Answer: -1, -1, 0, 1,1, 3
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  2. #2
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    Re: Inequality

    Quote Originally Posted by haftakhan View Post
    I have 2 questions and i have their answers but i m unable to understand them.

    Q-1) x=0 is the solution of the inequality?

    Q-2) Temperatures = 4, 1, 0, -2, -1, -3, 1, -2, 3, -1
    How many of these temperatures are with in 2.5 degree C of 1 degree C ?
    Answer: -1, -1, 0, 1,1, 3
    1) There are a lot of inequalities that have x=0 as the solution. $x^2 \leq 0$ is one example.

    2) just find all the temperatures in the range of [1-2.5, 1+2.5]=[-1.5,3.5] degrees C. You don't specify if the temperatures you list are given in C of F. If they are in F then first convert them to C.
    Thanks from haftakhan
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