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2x² - 2y = 282y - 4 = 12x
y - 2 = 6xy = 6x + 2
Substitute y = 6x + 2
2x² - 2(6x + 2) = 282x² - 12x - 4 = 282(x² - 6x - 2) = 28x² - 6x ...

A wave cut platform is formed when softer rock at sea level is eroded by the processes of hydraulic action and abrasion. These processes erode the rock to create a notch in the rock, which is eroded furth...

The answer lies in how many electron there are in the outer shells of each of the elements and how many electrons they can get or give away to gain a fuller outer shell. Lithium has 1 electron in its oute...

Pythagorus' theorem a^2 + b^2 = c^2
4^2 + 5^2 = c^216+25 = c^241 = c^2Root 41 or 6.403 = c

To work out the mean, we first add up all of the scores so 4+4+7+3+9+10+5+8= 50. We then divide by the number of student who took the test, or the number of scores given, which is 8. Divide 50 by 8 to giv...