- Sat Aug 01, 2015 1:50 pm
- Forum: Beginning Algebra
- Topic: Radical answer confirmation
- Replies:
**8** - Views:
**65**

What are some methods to check your simplifying algebraic expressions to make sure u have done it correctly. I know how to check equations. What about expressions? What the other poster is right. You can try your calculator if you're doing numbers. Otherwise it's just practice that lets you know wh...

- Tue Jul 14, 2015 10:27 pm
- Forum: Trigonometry
- Topic: Trigonometry- finding these lengths
- Replies:
**1** - Views:
**98**

I need help finding the lengths given in this diagram. http://i288.photobucket.com/albums/ll164/alexandraessie900/image.jpg1_zpsaztswvkn.jpg If I was doing this I'd start by trying to find a triangle that I can solve. The one on top gives one side plus the angles on either end of that side for ASA....

- Tue Jul 14, 2015 10:22 pm
- Forum: Intermediate Algebra
- Topic: Urgent problem, (simple?) linear programming,
- Replies:
**4** - Views:
**127**

Potentin wrote:...excel solver don't accept my approach =/

I don't know anything about using Excel's "solver" for this. Maybe this PDF can help.

- Sun Jul 12, 2015 2:24 am
- Forum: Trigonometry
- Topic: Reciprocal trigonometric ratios
- Replies:
**5** - Views:
**49**

Determine the value of theta(idk how to type the symbol) to the nearest degree 1.) cot(theta)=3.2404 2.)csc(theta)=1.2711 3.)sec(theta)=1.4526 4.)cot(theta)=0.5814 You can do like they show here : convert to the inverse-ratio form and plug it into your calculator. If you're stuck, please write back...

- Thu May 28, 2015 2:24 am
- Forum: Discrete Math
- Topic: How to negate a conditional statement?
- Replies:
**2** - Views:
**156**

If Fido barks, then Fido is a tree. let p = Fido barks Let q = Fido is a tree. symbolic form p ---> q My attempt "Your attempt" at what? Is the actual question in the subject line so you're needing to negate the if-then? p --> q is ~p V q This is equal so it's not a negation. To negate, p...

- Wed May 27, 2015 12:54 pm
- Forum: Beginning Algebra
- Topic: Surveying mathematics: Vectors and Areas
- Replies:
**3** - Views:
**216**

This is a Geocaching puzzle cache. Link: http://coord.info/GC48V2V I have been through it a couple of times and still can't quite get everything correct. Can someone please work through it for me so I can find out where I have gone wrong. I don't know if anybody here knows anything about surveying....

- Wed May 27, 2015 12:52 pm
- Forum: Intermediate Algebra
- Topic: step by step instructions solve using a system of Lanier equations
- Replies:
**1** - Views:
**220**

Solve using a system of Lanier equations. What are "Lanier equations"? I've never heard of them & can't find anything online about them. A mom purchased 28 packages of Reese's cups for a total of 88 Reese's cups. A king package holds 4 cups, and a regular package holds 2 cups. How man...

- Fri May 15, 2015 10:50 pm
- Forum: Arithmetic
- Topic: Speed/Distance/Time + Fuel Consumption
- Replies:
**2** - Views:
**618**

So, obviously we've got our formulas: Distance = Speed / Time No: distance equals rate ("speed") TIMES time (not divided by). You can learn more here . I'm wondering if anyone knows the quickest most efficient way to solving questions such as: What speed covers 18 miles in 54 minutes Plug...

- Thu May 07, 2015 9:24 pm
- Forum: Geometry
- Topic: Circle with 4 tangent circles
- Replies:
**6** - Views:
**6933**

I saw the image and wondered if I could do it without math, meaning without calculating the length of the radius for example. I don't know if you'd have to "calculate" but you'd probably have to do something measurable (even if it's just "duplicating" lengths with the compass, e...

- Thu Mar 12, 2015 7:33 pm
- Forum: Geometry
- Topic: Point Slope form without slope
- Replies:
**2** - Views:
**5641**

Have learned about point slope form. It is one of the form to find the equation of the straight line with formula y-y1=m(x-x1). But how to find the equation without slope using point slope form? What do you mean by "finding the equation without slope"? Because the line equation kind of ha...