Mathematics - 20 June 2007

what is the GCF for 20 and 31?


is it 1????

2007-06-20 11:45:25 · 7 answers · asked by marianne d 2

I need help with a fraction problem and I have to show the work but I don't know how:Help? This is suppose to be the first fraction over 4 and the second over 6

5(x+1) = 3(x-2)
_____ _____
4 6

2007-06-20 11:33:49 · 6 answers · asked by iweld4fun 1

2007-06-20 11:32:42 · 5 answers · asked by Anonymous

525
5704

2007-06-20 11:24:21 · 6 answers · asked by Sweet Pea 1

Differentiate the following and simplify as far as possible

Y= x^2 (2x - 3)^3

and

Y= [e^(3t)] / t+1

2007-06-20 11:21:51 · 5 answers · asked by McShootyFace 2

2007-06-20 11:19:38 · 2 answers · asked by tmath 1

7x - 2y = 10

A. -2y = -7x + 10

B. y = (-7/2)x - 5

C. y = (7/2)x - 5

D. y = (-7/2)x + 5
Is the answer A,B,C, or D

2007-06-20 11:16:09 · 11 answers · asked by Anonymous

here it is:

(x +1)^3(4x-9) – (16x+9)(x+1)^2

if you can...please explain. Thanks!!!

2007-06-20 11:06:34 · 6 answers · asked by Aymara 2

Erin's age is 3 times Warren's. In 4 years she will be twice as old as he will be. How old is each now?



your help will be highly appreciated.!!

2007-06-20 10:58:43 · 9 answers · asked by boylova_music2 1

True or false? The function f(x)=2-x is its own inverse. explain.

2007-06-20 10:46:34 · 4 answers · asked by lost 2

is y a function of x?
y=x^2

what's a good website where i can graph

2007-06-20 10:44:35 · 6 answers · asked by lost 2

lol my friend asked cuz she thinks im wrong=p

2007-06-20 10:37:11 · 7 answers · asked by Anonymous

let f (x) = 11x, g(x)= x^2-5, h(x)= 2(x-4) evalute each compostie function
please help

2007-06-20 10:36:26 · 1 answers · asked by Anonymous

2007-06-20 10:31:31 · 5 answers · asked by Hi 3

2007-06-20 10:30:39 · 7 answers · asked by klemaster07 1

I am taking a correspondant class over the summer and cant seem to figure out how to work out this problem.

2007-06-20 10:30:34 · 4 answers · asked by Anonymous

I need to show the work andI can't get this to work out....
3(X+7)= -2X-(3x+3)

2007-06-20 10:28:03 · 10 answers · asked by david c 3

let f (x) = 11x, g(x)= x^2-5, h(x)= 2(x-4) evalute each compostie function
please help

2007-06-20 10:03:20 · 2 answers · asked by algebra 3 1

A merchant buys X number shorts each costs 45$.But when he checks the invoice given, there are 2 UNREADABLE digits on where he only can read _92_$

Its very well known that the number of shorts he bought are ODD NUMBERS.

Whats the total of the 2 UNREADABLE numbers?

2007-06-20 09:58:21 · 5 answers · asked by Anonymous

Can someone please help show me how to solve this equation. I only have a few minutes to get the answer.
3/8x -1/6= -5/8x-2/3

Pleaseeeeee!!!!!!

2007-06-20 09:55:52 · 14 answers · asked by Burymyskull 1

1/(y+1) + a = 3/(y+1)

2007-06-20 09:47:12 · 11 answers · asked by Emad K. 2

I think I solved the problem correctly, would you please help me verify?

An event has a 1/10 chance of happening. If it was repeated 10 times what would be the probability of the event happening AT LEAST once?

1-(.9)^10 = 65 % chance

is this correct?

Thank you

2007-06-20 09:41:40 · 3 answers · asked by American Dreamer 1

2007-06-20 09:36:56 · 11 answers · asked by Anonymous

1) The volume of a larger prism is 168 cubic cm. If the prisms are similar with linear ratio of 3:2, what is the volume of the smaller prism?
--a--50 cubic cm
--b--56 cubic cm
--c--252 cubic cm
--d--126 cubic cm


2) Write an equation for a circle with center at P(5, -3) and a diameter of 8 units.


Thanks!!

2007-06-20 09:30:58 · 4 answers · asked by Someone 1

two elevators leave the tenth floor going down at the same time.the faster elevator takes 45 seconds between floors. the slower one takes 1 minute between floors. there are people on every floor waiting to go down. the first elevator that reaches each floor must stop to pick up passengers.it takes 3 minute for either elevator to stop and pick up passengers.which elevator will reach the first floor first

2007-06-20 09:27:22 · 16 answers · asked by aaron a 3

Solve

1/3x +1/5 = 1/15

a) -1

b) -4/5

c) -3/5

d) -2/5

e) 0

f) None of the above.

2007-06-20 09:24:14 · 6 answers · asked by Alex T 2

1. a*(1/a) = 1

True
False

2. (-1/a) = -a

True
False

3. (-a)(-1/a) = 1

True
False

4. (1/a)(1/b) = 1/(ab)

True
False

5. 1/(1/a) = a

True
False

Part 2
TRUE/FALSE: (Each question is worth 1 point)

6. The reciprocal of 3/4 is 4/3

True
False

7. The multiplicative inverse of -2/3 is 3/2

True
False

8. The reciprocal of 0 is 0

True
False

9. The multiplicative inverse of -1 is 1

True
False

10. The reciprocal of 1.25 is 0.8

True
False

11. a/b = a*(1/b)

True
False

12. 0/a = 0

True
False

13. b/0 = 0

True
False

14. (a/c) + (b/c) = (a + b)/c

True
False

15. (-a/-b) = -(a/b)

True
False

16. 12/4 = 4/12

True
False

17. (12/4) / 3 = 12 / (4/3)

True
False

18. (12 - 6) / 3 = 4 - 6

True
False

19. 12/ (-1/2) = -6

True
False

20. (-1/2) / 12 = -1/24

True
False

Part 3
Multiple Choice: Simplify or evaluate the statements. (Each question is worth 1 point)

21. (-1/3)(12)(-3/4)

5
4

3

22. (1/4)(-8a + 4b)

2a + b
-4a + 2b

-2a + b

23. (24x - 12y)(-1/6)

6x + 2y
-4x + 2y

4x + 2y

24. (1/2)(4c - 6d) - (1/3)(6c - 9d)

0
4c - 6d

-4c + 6d

25. 96/(-8)

12
-12

0

26. -9 / (-1/8)

72
-72

17

27. -12/36

3
-3

-1/3

28. Find the average of -21, 19, 5, and -11

14
-2

2

2007-06-20 09:08:53 · 6 answers · asked by stupid g 1

hey guys!
this is a silly question but can someone help me simplify:

x^3/2(x+x^5/2-x^2)
ur help will be appreciated greatly...
thanks!!!

2007-06-20 08:52:43 · 9 answers · asked by Anonymous

2(x-6)+x2

2007-06-20 08:46:57 · 7 answers · asked by Anonymous

I have a sql table with a lot of records, say 120,000, so it's too large to go into excel. I have another table that has two columns, the first column has an account name and the second column has the group name. I want to do a search within the sql table to compare it to my alt. table and in instances where things can be grouped return the group name, otherwise leave the name as is. If the table would fit into excel I could use a vlookup equation like this:

IF(ISERROR(VLOOKUP(C3,I:M
,2)),C3,VLOOKUP(C3,I:M,2))

but it won't fit into excel. Any ideas on how I could apply something like this to a sql table?

2007-06-20 08:42:01 · 2 answers · asked by Mr Chris 4