A nursery sells young palm trees. They guarantee that a palm tree will grow to be 3 feet tall, plus or minus 0.5 feet. If the tree's height doesn' guarantee after 2 years, a refund can be issued. (a) Let \( x \) represent the height (in feet) of a palm tree. Write an absolute value inequality that can be used to find the unacceptable heights These are the heights where the guarantee is not met, and a refund can be issued. \( \square \) - \( \square \) \( > \) \( \square \) \( \square \) \( + \) \( \square \) \( \leq \) \( \square \) \( \square \) \( + \) \( \square \) \( > \) \( \square \) \( \square \) - \( \square \) \( \leq \) \( \square \) (b) Solve the absolute value inequality from part (a). \( \square \) and \( \square \) \( \square \) \( <\square \) \( \square \) \( >\square \) \( \square \) or \( \square \) \( \square \leq \square \) \( \square \) \( \square \)
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To express the heights that do not meet the guarantee, we can formulate the absolute value inequality as follows: \[ |x - 3| > 0.5 \] This indicates that the tree's height deviates more than 0.5 feet from the expected height of 3 feet, which means it falls outside the acceptable range. Now, let’s solve the inequality. This leads to two separate inequalities: 1. \( x - 3 > 0.5 \) or 2. \( x - 3 < -0.5 \) Solving these, we get: 1. \( x > 3.5 \) 2. \( x < 2.5 \) Thus, the unacceptable heights are \( x < 2.5 \) or \( x > 3.5 \).