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While the tense of a verb describes when an action takes place in time, the aspect describes how it takes place (whether it was done repeatedly or once, whether it is an ongoing process ...

Remember that for a general quadratic equation Ax^2 + Bx + C = 0, the sum of the roots = -B/A and the product of the roots = C/A.In our question, A = 1, B = 7, C = 13.So a + b = -7/1 = -7 and ab = 13/...

The question is asking to differentiate which means find dy/dx. If we think about the differentiation rules we know about, we see that we should use the product rule as y is a product (multiplication) of ...

A comparative advantage is when a country can produce a good at a lower opportunity cost than another country. For example, if the UK can produce 10 pharmaceuticals or 5 cars, whereas Belgium can produce ...

The first thing to think of here is what does a mole actually mean?Using the equation: Moles = Mass (g) / Molar Mass we can first find out what the molar mass of CaCO₃ is.TO THE PERIODIC TABLE!...