Question

write a three - part inequality to represent the given statement. the normal range for the hemoglobin level x for an adult female is greater than or equal to 12.5 g/dl and less than or equal to 15.7 g/dl. the inequality is represented as .

Explanation:

Step1: Analyze the lower bound

The hemoglobin level \( x \) is greater than or equal to \( 12.5 \) g/dL, so we have \( x \geq 12.5 \).

Step2: Analyze the upper bound

The hemoglobin level \( x \) is less than or equal to \( 15.7 \) g/dL, so we have \( x \leq 15.7 \).

Step3: Combine the two inequalities

To form a three - part inequality, we combine the two results from step 1 and step 2. So the inequality is \( 12.5 \leq x \leq 15.7 \).

Answer:

\( 12.5 \leq x \leq 15.7 \)