- Fri May 15, 2015 10:50 pm
- Forum: Arithmetic
- Topic: Speed/Distance/Time + Fuel Consumption
- Replies:
**2** - Views:
**44**

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:
**5255**

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:
**4480**

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:
**312**

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:
**265**

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:
**491**

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:
**809**

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...

- Thu Jan 15, 2015 1:18 pm
- Forum: Intermediate Algebra
- Topic: Help to create an Algebraic equation
- Replies:
**3** - Views:
**668**

A couple living together have a combined bill payment of $1600. Jane makes a wage of $2900 a month and John makes a wage of $2000 a month. To make it fair John should pay a bit less percentage of his wage (being the lesser income maker) towards the bill so they have an equal amount percentage of in...

- Sun Jan 11, 2015 4:30 am
- Forum: Advanced Algebra ("pre-calculus")
- Topic: Difficult question
- Replies:
**7** - Views:
**1048**

the question is how long does it take to get to 180 feet. I tried to come up with an answer using the equation you provided but am having a trouble breaking it down. I came up with h(t) = 16t^2-144t+180 and I cant get it simplified enough to solve for t. There's nothing to solve the way you're doin...

- Sun Jan 11, 2015 4:27 am
- Forum: Trigonometry
- Topic: trig identities...again
- Replies:
**1** - Views:
**464**

I'm stuck on one of the last questions in my textbook and would appreciate any help... Use the sum or product identities to simplify the following [sin(@)+2sin(2@)+sin(3@)] / [cos(@)+2cos(2@)+3cos(3@)] I was going to ask if theres supposed to be a 3 in front of the sin(3@) but Wolfram Alpha can't s...