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The mean height of all the students is 1.48m which means that the total height of all the students is 30 * 1.48m = 44.4m. The contribution due to the boys is 14 * 1.52m = 21.28m. Therefore the total heigh...
2s = d/t. Multiply both sides of the equation by t to give 2ts = d. Then, divide both sides of the equation by 2s to give t = d/2s.
The perfect past is like 'I ate, I sang' in English, and is used for an event that happened once and where the action was finished (eg 'I ate an apple, I sang a song'). The imperfect is for an action whic...
First of all, highlight all of the verbs and adjectives in the text. Correct conjugation of verbs and agreement of adjectives is extremely important in translation and marks can often be lost due to silly...
All the elements within a group have the same number of electrons in their outermost shell. Magnesium is in group 2 because a magnesium atom has 2 electrons in its outer shell/outermost energy level.
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