A bus leaves the school to take students on a field trip. The bus travels 10 kilometres south, 10 kilometres west, another 5 kilometres south and 15 kilometres north. To return to the school, in which direction does the bus have to travel? How many kilometres must it travel in that direction

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A: This question is about application differential equation.

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Q: Q7 Find the complete solution of (i) p2 + q? = 4x + 4y (ii) 3p? – 2q? = 4pq

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A: NOTE: Refresh your page if you can't see any equations. . Jamal rides his bike to school and back…

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.