Mathematics - 4 December 2007

1. Given a small department with 7 members, how many subsets of the department (containing at least one person) could be created to work on any given project?

2. A small furniture maker allows customers to choose from 3 different finishes (light, medium and dark), 4 different woods (teak, birch, pine and oak) and 6 different styles of hardware to customize an entertainment center. Given these possibilities, how many different entertainment centers can be created?

2007-12-04 03:40:43 · 9 answers · asked by Nicole 4

ive got three questions and do not understand them do you know the answers 1. the bid $100 and increases 50% evry minute in how many minutes will the bid go over $2,500

2.sharon uses her initials, SLF, for her password. How many different three-letter passwords can she make with these letters

3.3. In how many ways can you make 45¢ in change using only nickels, dimes, and quarters.

2007-12-04 03:36:11 · 3 answers · asked by John M 2

1-cos^2x + cot^2x-cos^2x(cot^2x)= 1

2007-12-04 03:28:56 · 2 answers · asked by Anonymous

m - 8/m + 7 * 1/m^2 - 7m - 8

2007-12-04 03:15:40 · 3 answers · asked by Anonymous

2/3x+9=-21
-9 -9
2/3x=-30
_ _
2/3 2/3

k the lines above the 2/3s r supposed to bigger or longer, actuly i dont get it but yaa...my friend tryed to show me with a different problem and as u can see its probably wrong because i dont get it it so can anyone help me and explain how to do this, best answer goes to the one that looks correct and the polite one that tells me nicly ..sorry but there has been rude people out there....ha!good luck because im still worken on other math junk...thnx to all answers in the mean time

2007-12-04 03:09:56 · 4 answers · asked by ♥FuNkeE KiitTeN♥ 3

Identify the vertex and the axis of symmetry of the parabola. Identify points corresponding to P and Q.

http://i3.photobucket.com/albums/y81/slipknotme/i0000037.gif

a.
(–1, 1), x = –1
P'(0, 2), Q'(–3, 5)

b.
(1, –1), x = 1
P'(–2, 2), Q'(2, 2)

c.
(1, –1), x = 1
P'(0, 2), Q'(–3, 5)

d.
(–1, 1), x = –1
P'(–2, 2), Q'(2, 2)

2007-12-04 03:06:04 · 2 answers · asked by Anonymous

^ means the number next is to that power

Simplify
1. (-3x^3-5x^6+5)+(7x^6+7-9x^3)

Simplify

2. (7x^2-5x^4+5)+(9x^4+9-3x^2)

Simplify

3. (-3x^5+6x) - (-8x-3-2x^5)

Simplify

4. (2x^3+x-1) - (8x^3-4x-8)

Simplify

5. (x^3+9x-2) - (-6x^3-8x-3)

2007-12-04 02:58:20 · 4 answers · asked by Anonymous

Hi, I needs some math help, only 3 questions, thanks. :)

1) Solve: x2-75=0

2) Graph the parabola, y=-x2+5

3) Find the term that must be added to both sides of the equation so that the equation can be solved by the method of completing the square: x2-10x=3

a) 25
b) 100
c) 50
d) -3

Thanks again. :)

2007-12-04 02:52:51 · 3 answers · asked by Anonymous

tell me how you solve the problem please

2007-12-04 02:35:46 · 3 answers · asked by Anonymous

how many pounds of peanuts should he add to the cashews to obtain a mixture that will sell for $3.75 per pound?

2007-12-04 02:33:24 · 2 answers · asked by Success 1

:]
2z - 4 (9-3z) = 62

whats z?


and,

-34 = 3d+8/3

please help due next hour!

2007-12-04 02:28:05 · 6 answers · asked by Anonymous

Ok i've been trying to figure out how to do equations with varables on both sides but i don't really understand can sombody solve this problem and put steps to it please?thankyou =D

7x+12=13x

2007-12-04 02:23:57 · 11 answers · asked by Bloo 2

The height h (in feet) of an object that is dropped from the height of s feet is given by the formula h = s - 16t ^2 , where t is the time the object has been falling. A 6 foot tall woman on a sidewalk looks directly overhead and sees a window washer drop a bottle from the 5 story. How long does she have to get out of the way? Round to the nearest tenth. (A story is 12 feet.) Choose the answer from the following:

1.6 seconds

1.8 seconds

2.3 seconds

1.7 seconds


The hypotenuse of a right triangle is 2.8 units long. The longer leg is 1.8 units longer than the shorter leg. Find the lengths of the sides of the triangle.

2.8, 2.7, 0.9

2.6, 0.8, 2.8

0.7, 2.5, 2.8

2.8, 1.8, 4.7

2007-12-04 02:22:58 · 2 answers · asked by krd004 2

2 z - 4 (9-3z) = 62
whats z?

And

-34 = 3d+8/3

Whats d?

Please help, due next hour!

xxxxxx

2007-12-04 02:20:51 · 10 answers · asked by Anonymous

Please find all real numbers that satisfy this equation. Thanks in advance!

2007-12-04 02:16:36 · 5 answers · asked by Cyn 1

whats the answer

2007-12-04 02:12:11 · 4 answers · asked by Don L 1

integration using arctan

2007-12-04 01:59:25 · 4 answers · asked by Oedipus 2

Isotope Half-life Intial Quantity Amount After
(years) 1000 years
226Ra 1620 10g Find

2007-12-04 01:51:44 · 2 answers · asked by Karen R 1

Please help with Algebra question

2007-12-04 01:47:45 · 10 answers · asked by shellyeph 1

I have two planetary objects as follows below, but how do i calculate the mean densities of each body and show it in the correct format and check my answers?

object a) mean radius/lm 1738 , mass/10^20kg 735 , volume/10^18cm^3 22.0

object b) mean radius/lm 718 , mass/10^20kg 16 , volume/10^18cm^3 1.6

2007-12-04 01:31:44 · 1 answers · asked by ? 3

solve

2007-12-04 01:28:56 · 3 answers · asked by heena b 1

What are the similarities and more importantly the differences between computer science and math? If you could, please send/link me to Knuth's paper on the subject (I can't afford to buy it, can anybody give it for free of cost please?)

2007-12-04 01:24:50 · 6 answers · asked by franc.stoic 1

2007-12-04 01:11:10 · 1 answers · asked by Soheil 1

2007-12-04 01:10:19 · 8 answers · asked by Anonymous

2007-12-04 01:08:30 · 7 answers · asked by Anonymous

2007-12-04 01:03:09 · 4 answers · asked by Anonymous

worked out please?

2007-12-04 00:33:14 · 3 answers · asked by AshconLivingston 2

Jarod is having a problem with rabbits getting into his vegetable garden, so he decides to fence it in. The length of the garden is 2 feet more than 3 times the width. He needs 36 feet of fencing to do the job. Find the length and width of the garden.

a. length: 11 feet; width: 3 feet
b. length: 17 feet; width: 5 feet
c. length: 14 feet; width: 4 feet
d. length: 1 / 2 and 27 feet; width: 1 / 2 and 8 feet

2007-12-04 00:17:32 · 2 answers · asked by . 1

On a buying trip in Los Angeles, Rosaria Perez ordered 120 pieces of jewelry: a number of bracelets at $4 each and a number of necklaces at $13 each. She wrote a check for $1110 to pay for the order. How many bracelets and how many necklaces did Rosaria purchase?

a. 50 bracelets and 70 necklaces
b. 45 bracelets and 75 necklaces
c. 55 bracelets and 65 necklaces
d. 60 bracelets and 60 necklaces

2007-12-04 00:13:57 · 7 answers · asked by . 1

{8x - 5y = 8
{24x - 15 = 32

a. (8, 32)
b. (5 / 4, -2)
c. (3, 4)
d. no solution

2007-12-04 00:04:04 · 3 answers · asked by . 1