Question

Nolan used the following procedure to find an estimate for StartRoot 18 EndRoot.
Step 1: Since 4 squared = 16 and 5 squared = 25 and 16 < 18 < 25, StartRoot 18 EndRoot is between 4 and 5.
Step 2: Since 18 is closer to 16, square the tenths closer to 4.
4.1 squared = 16.81
4.2 squared = 17.64
4.3 squared = 18.49
4.4 squared = 19.36
Step 3: Since 18.49 rounds to 18, 4.3 is the best approximation for StartRoot 18 EndRoot.
In which step, if any, did Nolan make an error?

Answer 1

Answer:

PEMDAS

Step-by-step explanation:

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