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by theshadow
Tue Jul 14, 2015 10:27 pm
Forum: Trigonometry
Topic: Trigonometry- finding these lengths
Replies: 1
Views: 89

Re: Trigonometry- finding these lengths

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....
by theshadow
Tue Jul 14, 2015 10:22 pm
Forum: Intermediate Algebra
Topic: Urgent problem, (simple?) linear programming,
Replies: 4
Views: 125

Re: Urgent problem, (simple?) linear programming,

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.
by theshadow
Sun Jul 12, 2015 2:24 am
Forum: Trigonometry
Topic: Reciprocal trigonometric ratios
Replies: 5
Views: 46

Re: Reciprocal trigonometric ratios

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...
by theshadow
Thu May 28, 2015 2:24 am
Forum: Discrete Math
Topic: How to negate a conditional statement?
Replies: 2
Views: 154

Re: How to negate a conditional statement?

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...
by theshadow
Wed May 27, 2015 12:54 pm
Forum: Beginning Algebra
Topic: Surveying mathematics: Vectors and Areas
Replies: 3
Views: 208

Re: Surveying mathematics: Vectors and Areas

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....
by theshadow
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: 218

Re: step by step instructions solve using a system of Lanier equations

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...
by theshadow
Fri May 15, 2015 10:50 pm
Forum: Arithmetic
Topic: Speed/Distance/Time + Fuel Consumption
Replies: 2
Views: 596

Re: Speed/Distance/Time + Fuel Consumption

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...
by theshadow
Thu May 07, 2015 9:24 pm
Forum: Geometry
Topic: Circle with 4 tangent circles
Replies: 6
Views: 6926

Re: Circle with 4 tangent circles

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...
by theshadow
Thu Mar 12, 2015 7:33 pm
Forum: Geometry
Topic: Point Slope form without slope
Replies: 2
Views: 5495

Re: Point Slope form without slope

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...
by theshadow
Thu Mar 12, 2015 7:31 pm
Forum: Intermediate Algebra
Topic: Counting using Permutations and Combinations
Replies: 1
Views: 473

Re: Counting using Permutations and Combinations

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...

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