Mathematics - 3 September 2007

Let r be any irrrational real number. Prove that there exists a positive integer n so that the distance of nr from the closest integer is less than 10 (-10) = ( 10 the power minus 10)

2007-09-03 05:08:54 · 1 answers · asked by Anonymous

This is an algebra question demonstrating the 5 number summary and box plots. The complete problem: Stu had a mean score of 25.5 on four 30 point papers in English. He remembers three scores: 23, 29, 27. Estimate the fourth score without actually calculating it. Then check estimate by calculating the 4th score. Now, what is the five number summary for this situation? Does it make sense to have a five number summary for this data set? Why or Why not?

2007-09-03 05:07:19 · 1 answers · asked by titra j 1

Thanks! Please explain!

2007-09-03 05:06:59 · 0 answers · asked by Arch-RF d 1

A nut store usually sells cashews for $4.50 per pound and peanuts for $1.90 per pound. At the end of the month, the peanuts had not sold well. In order to sell 50 pounds of peanuts, the manager decided to mix the 50 pounds of peanuts with some cashews and sell the mixture for $2.50 per pound. How many pounds of cashews should be mixed with the peanuts to ensure no change in profit? (The vaule remains the same)

2007-09-03 05:00:13 · 4 answers · asked by aajain03 1

iv been getting alot of help for this problem but i cant get the answer for this question.

question:

the 7th graders sold tickets to their play. the tickets cost $3 for students and $6 for adults. one day they sold 79 tickets and collected $375. how many student tickets and how many adult tickets were sold???

2007-09-03 04:50:11 · 8 answers · asked by Nikki 2

A man observes a tower at angle @.After walking a distance equal to twice the height of the tower he agins observed the angle to be 2@.What is the value of @?

Ans: 15 (pi/12).I dont know how the answer is obtained.Try as hard as I might I keep on getting @=22.5.

Please HELP.
Thank you.
Tom Marvolo Riddle.

2007-09-03 04:39:00 · 3 answers · asked by vishnukmd 1

2007-09-03 04:29:40 · 5 answers · asked by kayla.nichols 1

At a certain fast food chain, you can buy Chicken Lumps in quantities of 6, 9, or 20. So you can buy 21 Lumps (= 2x6 + 9), but you can't buy 5, 19, or 22.

What is the largest number of Chicken Lumps you CAN'T buy, and why?

2007-09-03 04:27:36 · 1 answers · asked by TurtleFromQuebec 5

2007-09-03 04:24:41 · 4 answers · asked by Carlos A 1

2007-09-03 04:23:55 · 9 answers · asked by Anonymous

A researcher wants to find out wether there is a difference in the mean systolic bp of 40 yr old males and females. A random group of 40 yr olds were tested:
males females
samle size 15 10
mean systolic bp 132 127
standard of deviation 10 5
at the 0.10 level of signifigance, do the results indicate a difference btw. male and female systolic blood pressure?

I don't know how to figure out which formula to use...

2007-09-03 04:16:47 · 3 answers · asked by Karen W 2

Evalute the expression

2007-09-03 04:13:34 · 4 answers · asked by kayla.nichols 1

simplest radical form of 31.749
simplest radical form of 84

2007-09-03 04:09:41 · 2 answers · asked by Anonymous

I have a graphing calculator and I want to know how to get the screen to show the table and the graph simultaneously on the screen. How do you get it to do that? Please Help

2007-09-03 04:07:33 · 2 answers · asked by porscheboxster5 2

Need Solutions and work

2007-09-03 04:07:02 · 6 answers · asked by Shepard S 1

Could someone solve and explain with steps these two problems I am having difficulty with? =) Thanks.

1.) (5x^5)^3(1/25x^5)^2

2.) (5u^2 v^5)^5(5u^5 v)^-2

Thanks again.

2007-09-03 04:02:49 · 4 answers · asked by Null 1

I need work and answer Thank You.

2007-09-03 04:01:57 · 9 answers · asked by Shepard S 1

what is the LCM of 54, 72, 90?

2007-09-03 03:58:01 · 3 answers · asked by Anonymous

Again, this is homework (but he doesnt collect it) and i'm looking for HOW to do this...thanx!!
Best answer= 10p

Write an inequality with x isolated on the left side that is equivalent to the given inequality.

ax+b
____ > b;Assume a> 0 and c<0
c

2007-09-03 03:55:25 · 4 answers · asked by Anonymous

2007-09-03 03:54:05 · 7 answers · asked by gin_n_tonic11349 1

Yes, this is homework (but he doesnt collect it) and I dont get this one please try to explain explain.
Best answer gets 10 p. THANX!!!

Let f(x)=3x+2 and g(x)=5x-8. Find all values of x for which f(x)>g(x).

2007-09-03 03:49:33 · 3 answers · asked by Anonymous

seven consecutive odd numbers have an average of 55. what is the biggest odd number in the set

2007-09-03 03:48:37 · 4 answers · asked by Anonymous

please help me

2007-09-03 03:30:22 · 6 answers · asked by Monika 1

Find a general term, sub(a, n), for the given terms of each sequence.

(or in other words, find the pattern)

1/2 , 2/3 , 3/4 , 4/5, ....

2007-09-03 03:25:29 · 4 answers · asked by Anonymous

does anyone know how to prove the curvature of a polar equation (r = F(θ))? Or do you have any websites that shows how to prove it? Really need help, tnx...

2007-09-03 03:24:40 · 1 answers · asked by Sammy Baby 1

Help with this someone!

2007-09-03 03:21:44 · 3 answers · asked by ♥ ღAngelicaღ♥ 2

I just want to see people's solutions to the problem, but I already know the answer.

If for a certain positive real number x, cos (arctan x) = x, find the value of x^2.

2007-09-03 03:17:08 · 4 answers · asked by Anonymous

I want to check my answers... can someone please help me.

-k(squared) -(3k-5n) + 4n

k=-1 and n= -2

2007-09-03 03:11:31 · 4 answers · asked by Lx 1

the function is...

f(x)=the third root of of X-4

why is the domain all real numbers?

(i didnt know how to put it on my computer)
(instead of taking the square root, there is a 3)

please help me out!
i dont understand

2007-09-03 03:09:12 · 8 answers · asked by Michelle 3

I have a University Calculus textbook and I have a question on one of the promblems of chapter 2 section 2. If you have the same textbook or are just smarter than me and know how to do this question help, please. It is number 85a. Here it is:

If limit as x goes to 2 is (f(x)-5)/(x-2)=3, find limit as f(x) goes to 2.

My question is how do you find the limit of a function with a function, f(x), in it? The book answer says 5, but I'm not sure how they got it. Thanks to anyone who answers in advance.

2007-09-03 03:09:03 · 3 answers · asked by LaurenB 3