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A fossil fuel is a substance like coal, oil, or natural gas formed from decayed plant or animal remains which can be burned to produce energy and power. Crude oil is separated by fractional distillation -...
The easiest way to go about answering the early comprehension questions is to attempt to just translate the passage and if you get stuck to make an educated guess based on what you can understand and what...
The expression (2x+5) has the same value as y, and so we can use (2x+5) instead of y in the second equation. This means that we are now just dealing with one variable (x) instead of two (x and y). If we m...
a2 = 32 = 9, b2 = 42 = 16, a2 + b2 = 32 + 42 = 25, c2 = 25, c = 5
Market research involves gathering data about customers, competitors and market trends.
Primary - New research/data
Secondary - Already a...
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