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by Motherof8
Fri Mar 15, 2013 3:54 pm
Forum: Intermediate Algebra
Topic: quadratric equation: 9x squared + 3x plus 10 - 16y squared +
Replies: 1
Views: 1038

quadratric equation: 9x squared + 3x plus 10 - 16y squared +

How would one solve a problem like this: 9x squared plus 3x plus10-16y squared +154 + 3x? I subtracted and got it down to
(X squared+ 9) (y square+ 16) but I don't know what to do next. I'm sorry for the way this looks - I typed initial on aKindle.
by Motherof8
Thu Dec 20, 2012 7:06 pm
Forum: Intermediate Algebra
Topic: third power: how to find answer in quad. eqn
Replies: 1
Views: 1020

third power: how to find answer in quad. eqn

How do you find the answer in a quadratic equation that has an x with an exponent to the third power?
by Motherof8
Sat May 19, 2012 2:43 am
Forum: Beginning Algebra
Topic: Work problem: 12 min for one person, 18 min for another
Replies: 1
Views: 1279

Work problem: 12 min for one person, 18 min for another

It takes one person 12 minutes to do a job, another perspn 18 minutes. How long would it take for both of them to do the job together? I figured 12 minutes is 1/5 of an hour(60 minutes) and 18 minutes is 3/10 of an hour. 1/5 = 2/10. 2x/10 + 3x/10 =10/10 or 1. 10/1 X 5x/10 =5x. 10 X 10 =100. 5x = 100...
by Motherof8
Wed Apr 25, 2012 3:56 pm
Forum: Trigonometry
Topic: side of a scalene
Replies: 1
Views: 2417

side of a scalene

How does one find the measure of a side on a triangle that is not a right triangle, an isosceles, or an equilateral when one knows the measures of the angles and two of the sides? I would like an answer soon.
by Motherof8
Sun Apr 15, 2012 6:51 pm
Forum: Trigonometry
Topic: meaning of symbols
Replies: 2
Views: 1575

meaning of symbols

Could someone please tell me the meaning of these symbols: 0< = x < = 1. I'd like the answer as soon as possible.
by Motherof8
Fri Mar 23, 2012 1:57 pm
Forum: Beginning Algebra
Topic: What are matrixes?
Replies: 1
Views: 902

What are matrixes?

What are matrixes?
by Motherof8
Sun Mar 18, 2012 4:10 pm
Forum: Intermediate Algebra
Topic: quadratic equation: how to solve x^3 -15x + 15
Replies: 1
Views: 863

quadratic equation: how to solve x^3 -15x + 15

How would you solve this equation? x^3 -15x + 15. When I say (x^2 -15) (x -1) I end up with an extra -x ^2.
by Motherof8
Wed Feb 29, 2012 1:30 am
Forum: Geometry
Topic: Similar Triangles
Replies: 1
Views: 2343

Similar Triangles

How would you solve this problem: It is 3 P.M. on a sunny day. Your task is to find the height of the flag pole. You have only a meter stick. Explain how you would find the height of the pole and tell why your method works.
by Motherof8
Wed Jan 25, 2012 7:18 pm
Forum: Intermediate Algebra
Topic: logarithms: How would one use logarithms in everyday life?
Replies: 1
Views: 879

logarithms: How would one use logarithms in everyday life?

How would one use logarithms in everyday life? Does it have to do with computer codes, perhaps?
by Motherof8
Wed Jan 18, 2012 3:36 pm
Forum: Beginning Algebra
Topic: factoring 18r^3t^2 + 12r^2t^2 - 6r^2t
Replies: 4
Views: 1613

Re: factoring 18r^3t^2 + 12r^2t^2 - 6r^2t

Eureka! (I have read that eureka means "I have found it.") I believe I found the factors. Instead of 3 and 6, they are 2 and 9. I surmise that there was a typo in the book and -6rt^2 was meant. If one puts 2 r cubed t squared + 2rt x 9rt -3t,the answer works out. I don't need any more help...

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