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Author- Who authored the source? Are they close to the issue you're investigating (For example, if you're researching Star Wars, is your source the director? A key actor? A fan?). The author can have the lev...

Multiply both numerators and denominator by the opposite denominators to get 3(2x+5)/(2x+5)(x+1) and 4x(x+1)/(2x+5)(x+1). Now the denominators are both equal so we can combine into one fraction and add the n...

Bandits: Being in a largely lawless region of the country, settlers had to fend for themselves most of the time. A mixture of Indian and American raiders meant that the settlers were never truly safe, and th...

Motivation -> We need operating systems to give easy access to the hardware of a computer. A processor (CPU) can only execute one instruction at a time, yet we can have multiple applications running at th...

Compared to water ice is less dense this is due to hydrogen bonds in the open lattice holding the H 2 O molecules apart whereas in liquid form the hydrogen bonds break allowing the molecules of water to be c...