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8x + 4y = 4,4y = 18 - 8x,2y = 2 - 4x,18y = 18 - 36x,6x - 18y = 16,18y = 6x - 16,6x - 16 = 18 - 36x,42x = 34,x = 34/42 = 17/21,18y = 90 - 36(17/21),18y = 426/7,y = 71/21
Calculate total area of space: A = 1010 = 100m2Calculate area of pool: A = Pir2 = 3.14232 = 28.27m2Difference in area = 100m2Answered by Matthew C. • Maths tutor2529 Views
We can see from the term x^2 that this equation is quadratic. To solve it, we need to get it into the form ax^2 +bx +c = 0. Subtract 25 from both sides to reach this form:So we have the equation x^2 -5x -...
Let f(x) = x2- 1To apply a vertical translation, simply add the value to the overall equation. In this case it is p...
Standard form is a way of writing really big numbers in what is often a more compact manner. It also makes a really large number more readable. To put a number in standard form we write it by having a num...
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