## Search found 46 matches

Fri Mar 15, 2013 3:54 pm
Forum: Intermediate Algebra
Topic: quadratric equation: 9x squared + 3x plus 10 - 16y squared +
Replies: 1
Views: 1698

### 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.
Thu Dec 20, 2012 7:06 pm
Forum: Intermediate Algebra
Replies: 1
Views: 1500

How do you find the answer in a quadratic equation that has an x with an exponent to the third power?
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: 1824

### 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...
Wed Apr 25, 2012 3:56 pm
Forum: Trigonometry
Topic: side of a scalene
Replies: 1
Views: 2987

### 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.
Sun Apr 15, 2012 6:51 pm
Forum: Trigonometry
Topic: meaning of symbols
Replies: 2
Views: 2245

### 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.
Fri Mar 23, 2012 1:57 pm
Forum: Beginning Algebra
Topic: What are matrixes?
Replies: 1
Views: 1334

### What are matrixes?

What are matrixes?
Sun Mar 18, 2012 4:10 pm
Forum: Intermediate Algebra
Topic: quadratic equation: how to solve x^3 -15x + 15
Replies: 1
Views: 1279

### 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.
Wed Feb 29, 2012 1:30 am
Forum: Geometry
Topic: Similar Triangles
Replies: 1
Views: 3156

### 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.
Wed Jan 25, 2012 7:18 pm
Forum: Intermediate Algebra
Topic: logarithms: How would one use logarithms in everyday life?
Replies: 1
Views: 1270

### 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?
Wed Jan 18, 2012 3:36 pm
Forum: Beginning Algebra
Topic: factoring 18r^3t^2 + 12r^2t^2 - 6r^2t
Replies: 4
Views: 2219

### 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 for this ...