Mathematics - 11 December 2007

2007-12-11 23:54:28 · 9 answers · asked by derick b 1

2007-12-11 23:41:30 · 6 answers · asked by derick b 1

Consider the following statement:

If f:[a,b] -->R (a and b in R) is continuous and f(a) < f(b), then [a, b] contains a subinterval where f is strictly increasing.

Is this true? So far, I could neither prove nor find a counter example.

If, instead of strictly increasing, we admit f only monotonically increasing, then does anything change?

2007-12-11 22:59:40 · 7 answers · asked by Steiner 7

2007-12-11 21:41:51 · 3 answers · asked by Anonymous

What do you guys think about Alexis Lemaire?
A genius?

2007-12-11 21:06:47 · 11 answers · asked by jayjay 3

2007-12-11 20:46:58 · 2 answers · asked by David Junior 3

I'm looking at the integral of a function f(x) between x0 and x0+delta_x.

The trapezium rule is that this integral is equal to 1/2 * the sum between i=1 and i= N-1 of( f(x0) + f(x0 + i*delta_x)) * delta_x.

Thanks.

2007-12-11 20:21:53 · 1 answers · asked by Anonymous

ok having some issues with this problem.


I know the answer is
(1/x)+1

for

f(x)=x+1
g(x)=1/x

then for (g of f)(x)

answer is 1/x+1

I am trying to figure out how this answer came to be.
can someone please explain?

2007-12-11 19:53:37 · 5 answers · asked by Anonymous

2007-12-11 19:24:07 · 8 answers · asked by J B 1

i read my pre-cal textbook and googled mathematical induction examples. and i still dont' understand.
i understood one part where i have to add (k+1) on LHS.
ugh... that's so far i can understand.
i have a test tomorrow morning and i still don't get it. my professor explained but have no clue!

2007-12-11 18:55:34 · 4 answers · asked by Anonymous

I have a dataset, and z values for these. I want to calculate their probability percentage (z distribution), but not using the table (i.e. http://www.isixsigma.com/library/content/zdistribution.asp) I want to calculate it by hand since this is for a computer program. What is that formula?

2007-12-11 18:39:42 · 4 answers · asked by Anonymous

3/4 to %

2007-12-11 18:33:15 · 9 answers · asked by Anonymous

together Fred and Tony walked a total of 7 miles. If Fred walked x miles, how many milesdid Tony walk?

please explain

2007-12-11 18:26:16 · 7 answers · asked by Amy4U 1

# in [n] are bases to logs; SQRT means square root

Please walk-me through how to do this:

IF log[3] 2=p, log[3] 5=q, & log[3] 7=r; find the following in terms of p, q, and/or r

log[3] SQRT{882}

2007-12-11 18:04:24 · 5 answers · asked by James Michael S 2

add, subtract, multiply and divide two 9's and two 1's to equal 10.

meaning, if you filled in the blanks with +, -, x, /,
9_9_1_1
how would you get ten?

you can rearrange the numbers if necessary.

2007-12-11 18:01:28 · 6 answers · asked by pinkcherryladie 2

x=

please help me!!!!!!!!!!!

2007-12-11 17:51:04 · 9 answers · asked by creamy goodness 2

1-i/2+iGive the sum and the product of the roots of 6m^2-4m-9=0

2007-12-11 17:49:32 · 2 answers · asked by ladybuggy 1

math homework help!

2007-12-11 17:43:56 · 12 answers · asked by YEAUH! 3

435 base 7
+ 51 base 7
____________

I need details so i can really understand thank you so much!

2007-12-11 17:36:33 · 6 answers · asked by Fresh2Death 2

2007-12-11 17:28:49 · 6 answers · asked by Zach J 1

(-8/11)(9/10)= I cant find the answer to this question
Find the product

I am thinking 10 * 5.5 gives u 55
11* 5 gives u 55. I am so lost help me find the path to the white light.

Find the product
2 (3/5) (-5/7) This one is giving me problems too I hate these freaking problems. no pun intended. :)

2007-12-11 17:25:27 · 5 answers · asked by TheMiddleisSafe 3

absolute value of 2x+3
minus 4 = 7

2007-12-11 17:21:56 · 6 answers · asked by Change 2

2007-12-11 17:04:46 · 11 answers · asked by Anonymous

3 5
_ _
x
8 6

I Need Help Please Thank You For You Help

2007-12-11 16:45:16 · 2 answers · asked by Kim S 1

2007-12-11 16:33:11 · 8 answers · asked by shencock 1

so i have an ontuse triangle with a perimeter of 3 1/4 what are the lenght of the 3 sides??

i have 3 squares, square one has a perimeter of 4 1/2 inches ,square two has a perimeter of 5 1/2 inches, square three has a perimeter of 6 inches. What are the lenghts???

2007-12-11 16:32:29 · 2 answers · asked by star 2

How is f(x)=Arctan 8/x^2 done?????????

2007-12-11 16:28:03 · 3 answers · asked by xXPrincessXx 3

412 base 5 - (minus) 33 base 5

2007-12-11 16:14:23 · 3 answers · asked by Fresh2Death 2

i graphed it and saw there was no intersection so not really sure what to do

2007-12-11 16:01:58 · 4 answers · asked by jaja_juice 1

A person has taken four test so far in a class. On the first two test which are worth 20 percent, she got a 69, and a 73. On the third which is worth 25 percent she got an 84. The fourth test is also worth 25 percent, but what grade does that person need for their whole class average to be a 85?

Assume that the last 10 percent is given.

2007-12-11 15:52:12 · 4 answers · asked by smiles 2