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given the xeros 0, 2, 1 + i, 1 - i, write the polynomial  TOPIC_SOLVED

Given the xeros 0, 2, 1 + i, 1 - i, write the polynomial

I have no idea
by Stranger_1973
on Sun Feb 22, 2009 9:58 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: given the xeros 0, 2, 1 + i, 1 - i, write the polynomial
Replies: 6
Views: 2839

Re: given the xeros 0, 2, 1 + i, 1 - i, write the polynomial  TOPIC_SOLVED

so the other zero is x = 1 - i, so x - (1 - i) = x - 1 + i? how do you multiply it?
by Stranger_1973
on Wed Feb 25, 2009 10:21 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: given the xeros 0, 2, 1 + i, 1 - i, write the polynomial
Replies: 6
Views: 2839

write eqn of ellipse that models path of Halley's comet  TOPIC_SOLVED

Halley's Comet orbits the sun every 76 years. The comet travels in an elliptical path, with the sun at one of the foci. At the closest point, or perihelion, the distance of the comet to the sun is 8.8 x 10^7 km. At the furthest point, or aphelion, the distance of the comet from the sun is 5.3 x 10^9...
by Stranger_1973
on Wed Mar 04, 2009 8:03 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: write eqn of ellipse that models path of Halley's comet
Replies: 3
Views: 3100

Re: Solving of systems: Rowing speeds and current speeds?  TOPIC_SOLVED

tecnikal wrote:A River flows at 2km/h, and John takes 6 h to row 16 km up the river and 16 km back. How fast did he row?

For this one, use "r=2" for the river current, so the equation is 16/(j-2) + 16/(j+2) = 6.
by Stranger_1973
on Wed Mar 11, 2009 3:20 pm
 
Forum: Intermediate Algebra
Topic: Solving of systems: Rowing speeds and current speeds?
Replies: 2
Views: 2051

If f(x)=x^3-5x^2+7x-9, use IVT for poly fcns to prove that  TOPIC_SOLVED

My ? is on useing the intermediate value thm for polynomial functions. I dont understand how it works. Here is my Problem. If f(x)=x^3-5x^2+7x-9, use the intermediate value theorem for polynomial functions to prove that there is a real number a such that f(a)=100. Help?
by Stranger_1973
on Mon Apr 06, 2009 12:38 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: If f(x)=x^3-5x^2+7x-9, use IVT for poly fcns to prove that
Replies: 5
Views: 2494

 TOPIC_SOLVED

So I can use f(6)=69 and f(7)=138 to say that f(a)=100 for 6<a<7?
by Stranger_1973
on Mon Apr 06, 2009 2:53 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: If f(x)=x^3-5x^2+7x-9, use IVT for poly fcns to prove that
Replies: 5
Views: 2494
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