What is the substance? A hydrocarbon? An alkane?
hydrocarbon empirical formula = CH2
so X = 16 --- C8H16
for alkanes the rule is 2n + 2
so X = 18 --- C8H18
or, could be other forms, so message me if further help needed
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5h+11=13h-21 -5h +21 -5h +21 32=8h /8 /8 4=h
8: h-h-h, h-h-t, h-t-h, t-h-h, t-t-h, t-h-t, h-t-t and t-t-t.
h - 3.6 = 8 Therefore, h = 8 + 3.6 h = 11.6
15
Solution 1Start by putting the parabola's equation into the form y = ax2 + bx + c if it opens up or down,or x = ay2 + by + c if it is opens to the left or right,where a, b, and c are constants.The x-value for the vertex is -(b/2a). You can use this x-value to solve for the y-value by substituting the x value in the original quadratic equation.Solution 2Put the parabola's equation into this form: y - k = 4p(x - h)2or x - h = 4p(y - k)2You just need to simplify the equation until it looks like this. The vertex is located at the coordinates (h,k). (p is for the focus, but that isn't important as long as you know h and k.)