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Let's begin with the basics, before we begin we should be able to answer what is a surd? and What rules do we need?\begin{equation}...\end{equation}Answer: 3*sqrt{2}

Step one: convert all dimensions to the same units 1km = 1000m therefore 5km = 5000m12km = 12,000mStep two: recall that Pythagoras theorem is used for right angle triangl...

so we need to know the understanding of BODMAS, hoe to add fractions, how to multiply fractions, how to simplify fractions.Answer:9/7

In this answer I would be looking for the correct use of the present tense, connectives and, for stronger students, the use of opinion phrases. I would be looking for use of the present tense in the 'I' f...

As you move from left to right along period 3 (from K to Kr) the amount of protons in the nucleus increases therefore proton density increases. Shielding stays the same as it remains in the same electron ...