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(i) Recall that a curve crosses the x-axis (the horizontal axis) when the vertical y-coordinate is zero, so we are required to find all the points such that y=0, that is we must solve the equation x^2...

A substance will float on water if it has a lower density than water. Therefore, ice floats on water simply because it is less dense than water.

Water is unlike other substances in terms of ...

You are related to all the humans that are currently living on the planet, even if distantly. However, you are more closely related to your first cousin than you are to a classmate of yours. This is becau...

Yes to Justice: 

Ciclical images, which would suggest things are coming full circle within the lives of the characters. From the top of my head, I remember the line: wide skirted plaines' to descri...

An easy way to learn the verbs which take Etre when forming the perfect tense is by using Mrs Van Der Tramp. If you learn every verb on this list, you will know whenever they pop up that you must use Etre...