- Thu May 28, 2015 2:24 am
- Forum: Discrete Math
- Topic: How to negate a conditional statement?
- Replies:
**2** - Views:
**114**

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:
**143**

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:
**164**

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:
**358**

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:
**6856**

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:
**5361**

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...

- Thu Mar 12, 2015 7:31 pm
- Forum: Intermediate Algebra
- Topic: Counting using Permutations and Combinations
- Replies:
**1** - Views:
**408**

1. Using the letters from the word equation , how many 5-letter patterns can be formed in which q is followed immediately by u? The q and u are together as one unit, so you have the "letters" a, e, i, n, o, qu, and t, with no repetitions. This is 7 units and you have to pick 5. So do 7-ch...

- Mon Mar 09, 2015 2:56 pm
- Forum: Intermediate Algebra
- Topic: Linear programming problem
- Replies:
**1** - Views:
**352**

Hi, I am going to use excel to try to solve this problem and I can't figure out how to do this: Do you have to do it in Excel? Are you not allowed to do it the regular algebra way? Company builds 2 models of computers (A and B) There are 800 hours of labor available Labor required for each A comput...

- Tue Jan 27, 2015 10:43 pm
- Forum: Trigonometry
- Topic: Angle of an Isosceles triangle for any opposite side length.
- Replies:
**2** - Views:
**572**

ABC is a triangle. Opposite the vertices A, B, and C are the sides a, b, and c, respectively. (thanks for the syntax help). This is an Isosceles triangle since a and b are the same length. What formula can I use to determine the angle C for a given c. I am trying to write a function that will retur...

- Fri Jan 16, 2015 3:34 am
- Forum: Intermediate Algebra
- Topic: reverse formula
- Replies:
**4** - Views:
**916**

Dear Forum members , Can someone help me to turn this formula so I can calculate ta . thank you in advance, Mon. P = P50 [ (ti - tr) / ln( (ti - ta) / (tr - ta) ) 1 / 49.32 ]n (1) ta = ........ I don't know what you mean by "turning" the "formula" to calculate "ta". Ma...