0.4 is four tenths. 0.4 = 4/10=2/5
The equation represented by the table would be the 3rd option - y=|x-3|-3
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Electrons do not have FEET
300 represents the initial value or the value that you started with.
1.15 is the rate that the function increases by over t (time)
X^2/(x- 9 = 81/(x - 9)
This is the equation for which you want the solution.
Multiplying both sides of the equation by (x - 9) we get
x^2(x - 9)/(x - 9) = 81(x - 9)/(x - 9)
So the (x - 9) goes out from both the denominator and the numerator and then the simplified equation becomes
x^2 = 81
x ^2 = (9)^2
x = 9
So the value of the unknown variable x comes out to be 9.
