Mathematics - 11 September 2007

how would I do this?
|x-4|<(or less than)2

2007-09-11 14:22:39 · 7 answers · asked by Kiwi 1

how do you find the domain of a function? example: the range is 0, infinity and the function is the square root of x-1. how woulf i find the domain. please help i have a big test tommorow.

2007-09-11 14:18:12 · 1 answers · asked by gym_class_heroes_fiend 2

Im really bad at math so Im asking for help.

If the measures of three angles of a triangle are 8x-6,5x +10,and x +8,then the triangle is?

a)obtuse
b)right
c)acute
d)isosceles
explain...

2007-09-11 14:17:39 · 7 answers · asked by ryan9944 1

Sketch six points A, B, C, D, E, and F, no three of which are collinear. Name the lines defined by these points. How many lines are there?

2007-09-11 14:13:37 · 8 answers · asked by Sethy P 1

Question:
http://img401.imageshack.us/img401/7609/asdfec4.gif

on the right whats blurry is {p(n)}

and then for all integers n greater than or equal to 0

I have no idea what it means please help!

2007-09-11 14:13:32 · 3 answers · asked by sotkinghunter 1

If f(x) = cos x and f(a) = 1/4 find the exact value of:

a) f(-a)

b) f(a)+f(a+2pi)+f(a-2pi)

2007-09-11 14:13:05 · 2 answers · asked by rickyricardoiscool 1

okay..... let / mean dividing and - mean negative and minus. you will be able to tell if its a negative or minus.

and if you can i need the steps too.

1.[6+8(8/4)]-6

2. -7(2-(-1)-(-3)(4-9)

3. -8-2(-3)

4. 7-(-6)(-4)

5. -(-2)-4(3-2)

6. [5+16(24/8)]

7. 8(-1-3)-(-7)(-5-4)

8. -(4)-6(6-5)

9. -5-(-2)(6)

10. -(-7)-5(8-3)

11. -5(5+9)-1(9-7)


thats all.. and when a number like in number nine where it is like (-2)(6) in between the -2 and the 6 is an invisible times so you times them if they are like that with no sign inbetween them.

and if you are gonna say y dont you do this yourself dont.
cause i've done about fifty today. and im tired of them and im confused down to this point i just need help.

so please. help me.

2007-09-11 14:12:39 · 8 answers · asked by Anonymous

**2******1*******1***
--------+-------= --------
*X+1****3******X+1*

Solve the equation, if an equation has no solution indicate so please!
Need to know the steps to follow. Already have the answer here!

2007-09-11 14:11:44 · 2 answers · asked by Anonymous

Complete the square in x and y to find the center and the radius of the given circle.

(1/2x^2)+(1/2y^2)+(5/2x)+10y+5=0

Pls include all steps.

2007-09-11 14:11:29 · 1 answers · asked by Anonymous

which zeros in each number are significant?
0.00471
0.0089
1000.1
0.00005
0.0076009
0.000008

sorry but im kinda still unsure

2007-09-11 14:06:44 · 7 answers · asked by =] 1

say you have square root of -4; how do solve it..getting rid of the radical?

2007-09-11 14:05:29 · 6 answers · asked by GangGreen 2

If given the radius in feet and the arclength in feet, how do I compute the change in coordinates from point A to point B on a two dimensional graph? This is a common occurence in land descriptions. I believe it is called a simple curve. I understand how to calculate the chord, but I don't know how figure the difference in coordinates between point A (e.g. x = 1000 and y = 900) and point B (x = ?, y = ?). Seems like there's a way to reduce it to a right triangle, but I can't see how.

2007-09-11 14:02:02 · 2 answers · asked by SomethinFishy 2

7 [] 3 [] -4 = -5

30 [] 12 [] - 2 = -5

First person to answer correctly gets BEST ANSWER!

Woohoo, good luck. =D

2007-09-11 14:00:13 · 6 answers · asked by Anonymous

For the Function N=6.21/(0.035 + 0.45^t), use a table to find the intial value. Also determine, using a table whether there is a limiting value and if so calculate it's value.

2007-09-11 13:58:56 · 1 answers · asked by Melanie H 1

ok we're doing inverse and joint variations and this is the question:

The force F needed to loosen a bolt with a wrench varies inversely with the length L of the handle. Write an equation relation F and L, given that 250 lbs of force must be exerted to loosen a bolt when using a wrench with a handle 6 inches long. How much force must be exerted when using a wrench with a handle 24 inches long?

2007-09-11 13:58:29 · 1 answers · asked by pepsi 1

Of the result of

120*75

The answer is 9000 and I think it is two, but how do I show that in the solution

2007-09-11 13:55:32 · 2 answers · asked by Nhat t 1

ok i don't get this one either.. what does this question mean? Find a number with a square root between each of the following numbers.
6 and 7 _____
5 and 6 _____
10 and 11 _____
12 and 13 _____
13 and 14 _____
15 and 16 _____

( the ___'s are where you put the answer )

2007-09-11 13:53:38 · 20 answers · asked by Anonymous

Describe the set of all points (x,x)in the coordinate plane. The set of all points (x,-x)

2007-09-11 13:51:57 · 2 answers · asked by Anonymous

Write Each as a improper fraction

3 4/7 6 1/5

Write Each as a Improper Fraction

31/4 47/9

2007-09-11 13:48:13 · 9 answers · asked by Anonymous

2007-09-11 13:45:05 · 2 answers · asked by Hannah C 1

2007-09-11 13:42:08 · 28 answers · asked by Anonymous

is this right?
2 divided by 3 =2.333333333

2007-09-11 13:41:22 · 12 answers · asked by Anonymous

which zeros in each number are significant?
0.0224
3.000
3000
0.004300
0.00800
0.00967
0.023

2007-09-11 13:38:19 · 4 answers · asked by =] 1

1) When given two points, how can you write the equation of a line in standard form?

2) How would you simplify an equation like: (sqrt(18) + sqrt(8))/(sqrt(6))?

3) Lastly, how would simplify (-2a^(2)x^(3)y^(5))^4

2007-09-11 13:36:58 · 9 answers · asked by Turkey M 4

y= -2x+3 how do i graph this

2007-09-11 13:36:41 · 10 answers · asked by hurryuptrivia 1

I am learning number systems in school. We need to know about "natural numbers", "whole numbers", "Integers", "rational numbers", and "irrational numbers". I already know the definitions and examples, but what I am wondering about are the symbols. What are the symbols used for these terms?

2007-09-11 13:35:20 · 1 answers · asked by Cat >^..^< 3

There are four children in a family. The sum of the squares of the ages of the three youngest children equals the square of the age of the oldest child. How old are the children?
A.1,4,8,9
B1,3,6,12
C.4,5,8,10
D. 2,3,8,16

Show the work if you can.

2007-09-11 13:34:29 · 1 answers · asked by ibesheila 2

3(-4)+(-5)²

and

6(3²+2)11
see i was thinking it was like -726 or something..but it just doesnt sound right?

2007-09-11 13:30:27 · 15 answers · asked by Anonymous

- x + 4 – 9x + 3 > 7(x – 2)

2007-09-11 13:28:41 · 2 answers · asked by alton l 1

Coulomb's law for the force of repulsion between two charged bodies is known as an inverse square law; the force is inversely proportional to the square of the distance between the objects. For purposes of this problem,

F=C/(r^2).

Holding the charged objects at a distance of r1 apart gives a force of F1. When moving the objects to a distance of r2 apart, you observe a force F2 that is 2.9 times that of F1. This must mean that r2 = ______ r1.

Any help would be greatly appreciated.

2007-09-11 13:28:09 · 6 answers · asked by Anonymous