Estimate the answer to the calcualtion √63.2( only this number is srqt) + 4.02 devided by2.05^2? I DONT UNDERSTAND HOW 63.2 SQR IS 8 BC?
YOU need to round it up to 1sf which is 60 and you square root that ? :( My head hurts from maths argh aha
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Not really; what you do is round it to a nearby number that is a perfect square. That would be 64 and √64 = 8
Round the 4.02 to 4, and the 2.05 to 2 and use PEMDAS
8 + 4 ÷ (2²)
8 + 4 ÷ 4
8 + 1
9