Mathematics, 20.09.2020 06:01 mrsqueenbabe516
Let x1, . . . , xn be real numbers representing positions on a number line. Let w1, . . . , wn be positive real numbers representing the importance of each of these positions. Consider the quadratic function: f(θ) = 1 2 Pn i=1 wi(θ − xi) 2 . What value of θ minimizes f(θ)? Show that the optimum you find is indeed a minimum. What problematic issues could arise if some of the wi 's are negative? [NOTE: You can think about this problem as trying to find the point θ that's not too far away from the xi 's. Over time, hopefully you'll appreciate how nice quadratic functions are to minimize.] [HINT: View f(θ) as a quadratic function in θ, i. E. F(θ) = αθ2 +βθ +γ, where α, β, γ are real numbers depending on wi 's and xi 's.]
Answers: 3
Mathematics, 21.06.2019 16:30, rleiphart1
If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.
Answers: 1
Mathematics, 21.06.2019 21:00, kaylaamberd
What is the value of m in the equation 1/2 m - 3/4n=16 when n=8
Answers: 1
Let x1, . . . , xn be real numbers representing positions on a number line. Let w1, . . . , wn be po...
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