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we need to have a common denominator (bottom number the same) to be able to add or subtract fractionsmultiply first fraction by (x+4) on numerator (top) and denominator (bottom)multiply second fraction by...
• acid in stomach kills pathogens in food• skin forms a barrier / produces antimicrobial secretions• hairs in the nose trap (particles which may contain) pathogens• trachea / bronchi has mucus which traps...
a) Coal/Nuclear/(Natural) gas.b) Any two from Wind/Hydroelectricity/Solar/Geothermal or any other equally valid form of renewable energy generation.[Bonus]...
Zinc chloride and hydrogen
First, we want to find the gradient of L1 using (4,6) and (12,2)m= (2-6)/ (12-4) = -1/2 then we can find the equation of L1 using y=mx+c rearrange for c as the subject, c= y-mx and substitute the gradient...
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