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Need help with Complex Fraction  TOPIC_SOLVED

Help me finish this problem....Cant factor by grouping, what other method?

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by bbsa3412
on Sat Mar 28, 2009 10:28 pm
 
Forum: Beginning Algebra
Topic: Need help with Complex Fraction
Replies: 3
Views: 2135

Re: Need help with Complex Fraction  TOPIC_SOLVED

Thanks for the quick reply!!! I think the reason I was confused with factoring the denominator is because my book does not refer to the rational roots test in prior sections, so I would never had known how to factor it anyway. Thus far it has only demonstrated factoring by common monomial, special p...
by bbsa3412
on Sun Mar 29, 2009 2:07 am
 
Forum: Beginning Algebra
Topic: Need help with Complex Fraction
Replies: 3
Views: 2135

Related Rates: A plane, 40 mi from airport, is flying at  TOPIC_SOLVED

Need some help setting up the following problem:

A plane is 40 miles (horizontally away from an airport) flying at a constant altitude of 4 miles. The radar at the airport determines that the distance from the plane to the radar dish is changing at 240 mph. Determine the speed of the plane.
by bbsa3412
on Wed Mar 17, 2010 8:16 am
 
Forum: Calculus
Topic: Related Rates: A plane, 40 mi from airport, is flying at
Replies: 2
Views: 2261

Re: Related Rates: A plane, 40 mi from airport, is flying at  TOPIC_SOLVED

Thank you, this helped greatly.
by bbsa3412
on Wed Mar 17, 2010 11:00 pm
 
Forum: Calculus
Topic: Related Rates: A plane, 40 mi from airport, is flying at
Replies: 2
Views: 2261

Optimization Problem: Rain Gutter  TOPIC_SOLVED

Hey there Purplemath! I need some help setting up the problem: A rain gutter is to be constructed from a long 30 cm wide sheet of metal by bending two sides upwards at and angle of theta so that each of the sides and bottom is 10 cm wide. Determine the angle theta so that the cross-sectional area of...
by bbsa3412
on Mon Apr 19, 2010 9:59 pm
 
Forum: Calculus
Topic: Optimization Problem: Rain Gutter
Replies: 1
Views: 2335

Proof:Show that BAB^-1 is invertible  TOPIC_SOLVED

Let A and B be any invertible matrix. Show that the matrix BAB^-1 is invertible. What is its inverse?
by bbsa3412
on Tue Oct 05, 2010 3:34 pm
 
Forum: Matrix (Linear) Algebra
Topic: Proof:Show that BAB^-1 is invertible
Replies: 1
Views: 2390

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