underguy77
New member
if you could give me a hand id really appriciate it. i missed a week of class....been sick as hell and i got a test tomorrow. My professor is some foreign guy and i cant understand him so i usually figure this stuff out on my own. im having a really hard time with this and if anyone is feeling up to doin some math problems and showing me what ya did (i got a TI 83 too so if u gotta use it just let me know what to hit) Id appriciate it
1) find the x-coordiates where the horizontal tangents for f(x)=2x^3-3x^2-19 occur. the rightmost one occurs....?
2) Let P(x,y)=ln(x^2y). Then Px(1,1) is...?
3)Suppose the marginal cost of producing x copies of a book is given by dy/dx=1000/y (squr root of X). if y = 200 when x = 4 then the cost of producing 625 books is...?
4) the supply and demand functions for a certain commodity are given by: supply: p=2+9x/4, and demand: p=13- x/2. then producers surplus is....?
and consumers surplus is...?
thats the types of questions that are gonna be on the test.....if anyone can help me out id appricate it very much
peace
underguy77
1) find the x-coordiates where the horizontal tangents for f(x)=2x^3-3x^2-19 occur. the rightmost one occurs....?
2) Let P(x,y)=ln(x^2y). Then Px(1,1) is...?
3)Suppose the marginal cost of producing x copies of a book is given by dy/dx=1000/y (squr root of X). if y = 200 when x = 4 then the cost of producing 625 books is...?
4) the supply and demand functions for a certain commodity are given by: supply: p=2+9x/4, and demand: p=13- x/2. then producers surplus is....?
and consumers surplus is...?
thats the types of questions that are gonna be on the test.....if anyone can help me out id appricate it very much
peace
underguy77