Mathematics - 20 September 2007

The answer I got was -16 is this correct or did I get it wrong

2007-09-20 13:19:35 · 10 answers · asked by m&m 1

1 - 2/3y = 9/5 - y/5 + 3/5 Solve for Y

2007-09-20 13:17:52 · 1 answers · asked by KitKatbar 2

when do i flip the sign of inequalities?
i know that its one dividng or multiplying by negative but im confused.

which equation would you have to slip the sign in?

1) -2x<20

or

2) 2x<20

so which problem would i have to switch the sign in?

thank youuu (:

2007-09-20 13:15:42 · 7 answers · asked by gleek. 3

x^4+x^3-10x^2+x+1
>_> what are the roots of that.

2007-09-20 12:50:35 · 1 answers · asked by Henry Chan 1

a pipe of legible diameter is to be carried Horizontally around a CORNER from a hallway of 8ft into a hallway of 4ft wide. Whats is th maximum length that that pipe can have?
without using calculus

follow the link to see the pic
http://img468.imageshack.us/my.php?image=scan001001fx7.png
or
http://aycu37.webshots.com/image/27916/2005320442045045817_rs.jpg

please i realy need this

2007-09-20 12:49:06 · 4 answers · asked by The Answer 3

2007-09-20 12:39:11 · 1 answers · asked by nala 1

2007-09-20 12:38:16 · 8 answers · asked by Anonymous

2007-09-20 12:31:27 · 2 answers · asked by mathfan09 1

a). The work done in holding a 50kg object at a height of 2 m above the floor for 10s is?

b). A total of 4900J is used to lift a 50-kg mass. The mass is raised to a height of?

c). A 1-kg object has kinetic energy of 1 J when its speed is?

2007-09-20 12:30:06 · 2 answers · asked by TwiggyRamirez 2

after solving and putting in simplest form I got 4cd. Is this correct?

2007-09-20 12:24:56 · 8 answers · asked by Anonymous

2007-09-20 12:20:31 · 3 answers · asked by Sarah R 1

I know that it's sort of a no duh thing. An absolute value will of course be more than a negative number.

2007-09-20 12:20:05 · 2 answers · asked by doomgrr 2

If you know this then can you tell me which ones match?
1/4 ac=bc
a-b=6 25%
3/4=9/x a+c=b+c
x+4=20 45
4x=2x+24 a-c=b-c
a=b a=6-b
1/2 of 90 11/25
44% .25
2x-4=28 x=16
a+b=6 a/c=b/c
a=6+b

2007-09-20 12:16:45 · 3 answers · asked by Anonymous

Identify the hypothesis and conclusion of each conditional.Write the converse of each conditional.If the converse is false,give a counterexample to show that it is false.

If it is snowing in Chicago,then it is snowing in Illinois.

If Two angles are complementary,then the sum of their measures is 90 degress.

[I need just need help with these 2 just to get an example of what I am doing thanx]
=]

2007-09-20 12:10:11 · 2 answers · asked by Cookie Gurl 1

Solve 8r + 4(2r - 6) = 4r - 4

A. 8/3
B. 5/3
C. 3
D. 2

2007-09-20 12:02:50 · 13 answers · asked by Anonymous

and if anyone could explain how to do this on a graphing calculator that would be great

2007-09-20 12:00:58 · 5 answers · asked by kachilous_2002 1

2007-09-20 12:00:27 · 9 answers · asked by atlien2008 1

its absolute value

-12 |9x+1| =144

please show the steps on how you get the answer. thanks.

2007-09-20 11:58:01 · 1 answers · asked by Michael R 1

1.How many numbers between 100 and 200 can be expressed as powers of 2?Show steps.
2.Which power of 2 is closest to 1000?

2007-09-20 11:57:37 · 8 answers · asked by Natty 2

hi ok the details are you cano nly use the numbers 1,4,8,and 9 and you can only use the once in each secunse. You have to use all the numbers, you can't use a 2 diget number. You can use any mathimaticl epression.

the numbers I need are 1, 7, 16, 26, 30, 34, 38, 39, 47-49, 51, 57, 61-66, 71-74, 78-83, 87-89, 93-95

If you can get any of thouse number it would really help and I would like it for mon sept 24 if you can

THANK-YOU for looking/answering my question

2007-09-20 11:51:46 · 2 answers · asked by Anonymous

what is the proper term for this (X^2+8x +16)

is it a trinomial?

& what is it called when i have to do this 3(X^2+8x +16)
i say distribute....right????

plz & thanks!

2007-09-20 11:50:23 · 5 answers · asked by *~JeS~* 5

2007-09-20 11:48:25 · 3 answers · asked by James F 1

I needed to find the zeros of this polynomial:

1/4(t2-2t+15)

So, I graphed it, and there are none.

How do I show this algebraically?

Thank you.

2007-09-20 11:47:14 · 7 answers · asked by baileyo 2

Can you figure out the last two numbers to this sequence?

4, 1, 6, 8, 50 ,402, ____ , _____

2007-09-20 11:43:34 · 3 answers · asked by Anonymous

"The cube of a number is always greater than the number"

i'm really, really cruddy with finding counterexamples for conjectures! please help!

2007-09-20 11:40:07 · 5 answers · asked by BLEH 1

2007-09-20 11:34:06 · 2 answers · asked by Robert M 2

when will i ever use algebra in life? im not going to be a math tacher or scientist so why teach it to me

2007-09-20 11:26:08 · 10 answers · asked by sokhead93 1

f(x)=cubed-root of x
f(a)=limit x goin' to a... f(x)-f(a)/x-a
please help.. i got 1 over 3 times (the squared-root of a)^2
oooh no!! i have no idea! someone save me!!

2007-09-20 11:15:57 · 2 answers · asked by Anonymous

think of a situation you observed outside school in which deductive reasoning was used incorrectly.write some sentences describing what happened and explaining why you think is a poor deductive reasoning?

2007-09-20 11:14:19 · 3 answers · asked by hi ! (: 3

2007-09-20 11:04:46 · 3 answers · asked by nickmydog 1