If v is half of w: v = w/2 and

**u**is the mean of v and w:**u**= (v + w) / 2 And you...240 w = 80 Now that we have w we can solve for v and**u**: v + w = 120 v + 80 = 120 v = 40**u**= (v + w) / 2**u**= (40 + 80...3 Answers · Science & Mathematics · 25/10/2019

Hint: Let

**u**= k-9. Then write all as an expression as**u**. Then let**u**=k. Show ur steps if need be and we can take it from there.3 Answers · Science & Mathematics · 13/11/2019

...which says = ∫ [ 0 to arccos(2/7) ] ( 49 ( 1 + cos(2u))/2 + 4 - 28cos(

**u**)) du ( I am changing everything back to theta, since it helps...4 Answers · Science & Mathematics · 24/10/2019

f(x) = (x^3)e^(-0.01x) The function is of the form f(x) =

**u**(x)v(x) and the derivative is of the form f'(x) =**u**'v + uv' ...3 Answers · Science & Mathematics · 13/11/2019

i got it hello welcome to YA

**u**can post questions and answer question3 Answers · Science & Mathematics · 27/10/2019