Mathematics - 10 September 2007

2007-09-10 11:42:33 · 2 answers · asked by crunkjude619 1

Problem Of the Week Suppose the hundreds digit of a three-digit number is greater than the tens digit and the ones digit. When the digits in the number are reversed and the resulting number is subtracted from the original number. The units digit in the difference is 4. What is the difference between the three-digit number and its everse? How many different three-digit numbers meet the given conditions?

2007-09-10 11:41:24 · 5 answers · asked by aroe 1

Determine whether the sequence converges or diverges. If it converges find the limit.

1) (3 + 5n^2)/(n + n^2)

2) an= n/(1+ radical n)

3) an= (-1)^(n-1)n/(n^2 + 1)

4) {n^2e^-n}

Please either explain how to do it or show me the steps so i know..thanks! :)

2007-09-10 11:37:49 · 1 answers · asked by Anonymous

2x^2+3x-1, f(x+h)-f(x)/h, h is not = to zero

2007-09-10 11:35:49 · 1 answers · asked by ladylight 1

what do i do in this situation?
7x^2-71x+10
so 7*10=70
-70+-1=-71

7x^2-70x-x+10
7x(x-10)-(x+10)


rut rooooowww!

i don't remember what to do!

thanks in advance!

2007-09-10 11:33:03 · 1 answers · asked by alexie. 4

What is an appropriate domain for the local linear approximation of the square root of x ((radical)(x))? And why? Give explanation please

2007-09-10 11:20:30 · 2 answers · asked by iamsuperpeace 2

what is the final answer when you factor it all out

2007-09-10 11:07:24 · 3 answers · asked by Cayden 1

i dont need the answer, i just need to know if its X=0

if its not X=0 please show ur work when giving the answer

it will be very appreciated

2007-09-10 10:56:59 · 7 answers · asked by Anonymous

http://img260.imageshack.us/img260/9347/13776817gi8.jpg
That links shows the picture the question is describing:

2007-09-10 10:56:39 · 3 answers · asked by Anonymous

ok here we go:

5x+2y=7

explain to me how u t=do this cus i dont get this eithr

2007-09-10 10:53:28 · 7 answers · asked by blah! 3

Find the are of this figure!?!? its 3in. 2in. 7in. 2in. 10in. and 4in.!!!!!!!!THANKS!!!!!!!

2007-09-10 10:52:09 · 10 answers · asked by Claire P 1

I don't know how to do these problems without guessing and checking. Will someone please help explain the reasoning to me? Thanks.

Find the value of "r" that makes each sentence true.

2^(r+5) = 2^(2r-1)
I know that the answer to this problem is r=6 but how??

also...

m^r / m^15 = (m^3)^r+2
(m^r) is in the numerator and (m^15) is in the denominator. also on the right side of the equation the 3,r, and 2 are all exponents.
For this problem I got that the answer was -8.5 and it works but the book got -10.5 (-21/2) and i couldn't even get this to equal both sides of the equation?? suggestions??

2007-09-10 10:49:38 · 7 answers · asked by Razzle Dazzle 3

Wow. The class barely started and I'm already failing. Our first test was on stuff like Algebra 2 and Pre-Cal. I failed the test so badly that it's not even funny. Out of the statistics, about 30% of our class failed, 32% got A's, and the other remaining students got B's-D's. The test was a nightmare for me.

However, on the other hand, we are covering limits right now and I find the chapter pretty easy. >_>

I'm having mixed thoughts about this class now. Jumping from an extremely hard test to an easy chapter? Does Cal AB material stay relatively easy like this or do they become sharply harder later?

2007-09-10 10:49:31 · 6 answers · asked by Anonymous

How do people do that trick where you pick a number and multiply and divide it, and then at the end they guess the outcome number?

2007-09-10 10:47:00 · 3 answers · asked by Anonymous

Your tennis team is having a fundraiser. You are goint to sell sun visors and baseball caps to help? write an equation for the total amount you raide.
Part 2: Your team raises $4480, give 3 possible combinations of the sun visors and baseball caps that could have been sold if hte price of the sun visor was $3 and the baseball cap was $7. Please show step by step process.

thank you

2007-09-10 10:45:16 · 2 answers · asked by Anonymous

If I scored 333 on an exam, and the mean is 250 with a standard deviation of 50, how did I do? Am I in the 80th percentile or something, or lower? Thanks

2007-09-10 10:43:59 · 3 answers · asked by heyhey022001 2

Chairs for a meeting are arranged in six rows. Each row has the same number of chairs.

a. What is the minimum possible number of chairs that could be in the room?

b. Suppose 100 is the maximum number of chairs allowed in the meeting room. What other number of chairs are possible?

2007-09-10 10:42:21 · 6 answers · asked by Fernando M 2

ya know in math? <333

2007-09-10 10:40:04 · 9 answers · asked by ana k 1

2007-09-10 10:39:12 · 3 answers · asked by cait 2

write the number named by the underlined digit in 1.25 (the two is underlined)

write two and thirty-six hundredths as a decimal?

write in words- 0.92 15.8

2007-09-10 10:37:49 · 7 answers · asked by Anonymous

Can someone help me with this question? I am so lost!!!!!
Is this problem true or false and why?
11 is = to -(-11)

2007-09-10 10:37:12 · 9 answers · asked by Nikki 1

Hoshi walks 10 meters in 3 seconds
What is her walking rate?
At this rate, how long does it take for her to walk 100 Meters?
Suppose she walks this same rate for 50 seconds. How far does she walk?
What is an equation that represents the distance d that Hoshi walks in t seconds?

Please help me with these questions I am clueless.

2007-09-10 10:33:47 · 11 answers · asked by Helen D 1

when you solve for x:

-3x >3
__ __
-3 -3

x is -1 but is it x<-1 or x>-1

What is the rule with flipping inequalities when dividing? Thank you

I know x equals -1 but do you flip the sign to be <-1 or leave it as >-1?

Thank you

2007-09-10 10:25:19 · 14 answers · asked by ScoTT 1

sam works 12 hours a week.he recently received a 5% raise and his new weekly pay is 115.92 . what is his weekly pay before raise?what was his hourly pay before the raise?

2007-09-10 10:23:12 · 6 answers · asked by tita 2

3(x-5)+2(3x+1)=45

-2(x+4)+6=-3

2007-09-10 10:20:13 · 1 answers · asked by blah! 3

2 − 3a − 5 / 4 = 6-7a / 3

2007-09-10 10:19:53 · 5 answers · asked by Anonymous

A smart shopper bought 5 pairs of shorts and 8 tops for a total of $108. if the price of a pair of shorts was twice the price of a top, the nwhat was the price of each type of clothing.

2007-09-10 10:19:09 · 8 answers · asked by Detricia W 1

here it is:

4x-5=4x+10

2007-09-10 10:16:23 · 7 answers · asked by blah! 3

please help.

2007-09-10 10:09:56 · 2 answers · asked by Jess-Jess 1

Yeah, again doing a review from two grades ago and lost. Any links for Algebra I would help and how you do this problem.

2007-09-10 10:06:23 · 7 answers · asked by Adam 5