this experiment follows a binomial distribution

where x is the number or heads

- Thu Jul 28, 2011 2:42 am
- Forum: Advanced Algebra ("pre-calculus")
- Topic: Probability Involving 3 Coins
- Replies:
**5** - Views:
**5582**

this experiment follows a binomial distribution

where x is the number or heads

where x is the number or heads

- Tue Jul 19, 2011 3:10 am
- Forum: Calculus
- Topic: limit, x=>0, (1/x^3)(1/sqrt[x^2+1] - (1+ax)/(1+bx)) = l
- Replies:
**3** - Views:
**5446**

it doesn't look possible. I looked at the Taylor expansion of . Even with the best choice of a,b the expansion includes an term and therefore the limit would not exist

- Mon Jul 18, 2011 5:07 pm
- Forum: Calculus
- Topic: help with evaluation
- Replies:
**2** - Views:
**1868**

isaiah45798 wrote:how would i evaluate f(x+h)-f(x)/h and simplify if f(x)=x^2-2x. Please help.

- Thu Jun 23, 2011 6:27 pm
- Forum: Intermediate Algebra
- Topic: [SPLIT] solving y(y+1)(y+2)(y+3) = 7920
- Replies:
**3** - Views:
**1649**

Martingale wrote:

therefore

also note ...

so could also be -11

- Thu Jun 23, 2011 12:44 pm
- Forum: Intermediate Algebra
- Topic: [SPLIT] solving y(y+1)(y+2)(y+3) = 7920
- Replies:
**3** - Views:
**1649**

- Fri Jun 10, 2011 6:50 pm
- Forum: Intermediate Algebra
- Topic: Substituting a negative integer for a variable... exponent
- Replies:
**3** - Views:
**2170**

I ran across this yesterday in a Pearson intermediate Algebra text. The problem presented in the text is in regards to graphing ordered pairs. An equation to express the relationship between the pair is given as; y = 4 - x 2 The solution requested is a graph x and y for all pairs where x is an inte...

- Fri May 27, 2011 5:00 am
- Forum: Trigonometry
- Topic: Trig Identies - One Question Please Help!
- Replies:
**1** - Views:
**1672**

jwmhelp wrote:Here is a trig question I need help solving (step by step walk-through would be the most beneficial)

Our teacher prefers that we only work on one side.

(1 - csc^2 x) / (1 + csc x) = (sin x - 1) / sin x

Use the fact that

then simplify.

- Mon May 23, 2011 4:24 pm
- Forum: Pre-Algebra
- Topic: pre-algebra story problem
- Replies:
**1** - Views:
**1967**

I need help so I can help someone else:) Brad wants to buy flowers for a friend with $33.00. The daisies are $1.00 each and th roses are $2.00 each. He buys 3 more daisies than roses. How much did the roses cost? Let X=# roses then how many daisies are there (in terms of X)? What is the cost for th...

- Fri May 20, 2011 4:20 am
- Forum: Calculus
- Topic: Rocket- Work Integration
- Replies:
**2** - Views:
**3468**

- Wed May 18, 2011 4:17 am
- Forum: Intermediate Algebra
- Topic: simplifying rational expressions
- Replies:
**2** - Views:
**1385**

chikenf00t wrote:How do you simplify this? (4n^2-8)/(4n-4)I know the answer, I just need directions on how to solve it...

factor out a 4 from the top and bottom