Answer:
Exact form : x=6/5
Decimal form : x=1.2
Mixed Number form : x=1 1/5
Step-by-step explanation: Solve for x by simplifying both sides of he equation, then isolating the variable.
Hope this helps you out! ☺
So, f[x] = 1/4x^2 - 1/2Ln(x)
<span>thus f'[x] = 1/4*2x - 1/2*(1/x) = x/2 - 1/2x </span>
<span>thus f'[x]^2 = (x^2)/4 - 2*(x/2)*(1/2x) + 1/(4x^2) = (x^2)/4 - 1/2 + 1/(4x^2) </span>
<span>thus f'[x]^2 + 1 = (x^2)/4 + 1/2 + 1/(4x^2) = (x/2 + 1/2x)^2 </span>
<span>thus Sqrt[...] = (x/2 + 1/2x) </span>
Function would be f(x) = 5x+85
here, x= 15
5(15)+85 = 75+85 = $160
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