Mathematics - 11 September 2006

2006-09-11 16:52:24 · 11 answers · asked by brand 1

Suppose you want to know the last card for a deck of 47 cards or one with 102 cards and you don't have that many cards.

What would be the equation I would use to solve this problem? I know the pattern looks like this...
The 1st column is the number of cards in the deck. The 2nd is the last numbered card.

1 = 1
2 = 2
3 = 2
4 = 4
5 = 2
6 = 4
7 = 6
8= 8
9 = 2
10 = 4
11 = 6
12 = 8
13 = 10
14 = 12
15 = 14
16 = 16
17 = 2
18 = 4
19 = 6




Please let me know how you solved it and please let me know what equation will work!

2006-09-11 16:39:58 · 2 answers · asked by llarsen78 1

Two mannequins-1 and 2-will be dressed for display in outfits chosen from ten articles of clothing. Each article is in exactly one of three colors: navy, red or yellow. There are three hats-one in red color; three jackets-one in each color;three skirts-one in each color; and one red tie. Each mannequin wears exactly one of the hats, one of the jackets, and one of the skirts. Furthermore, their outfits must meet the following restrictions:
1.Neither mannequin wears all three colors
2.Each mannequin wears a hat in different color from the jacket it wears
3.Mannequin 2 wears the navy skirt
4.Mannequin 1 wears the tie

Question: If all three of the yellow articles of clothing are included in the two mannequins' outfits, which one of the following could be true?

(A) Mannequin 1 wears the navy jacket
(B) Mannequin 1 wears the yellow jacket.
(C) Mannequin 1 wears the red skirt.
(D) Mannequin 2 wears the red hat.

The answer is (B) only..
But why (C) cannot be the answer?

2006-09-11 16:02:15 · 15 answers · asked by ? 1

2006-09-11 16:01:31 · 4 answers · asked by subgenius 4

the sum of the base and height of the parallelogram is equal to 40 inches:
A) find a function that models the area of the parallelogram:


B)Find the demensions to maximize the area (without a calculator)

2006-09-11 15:54:33 · 4 answers · asked by Pumbler 1

hi i need help woth my math home work -

Solving 2 step equations

Um, ok here is one i did and im not sure if it's right

-5b - 6 = -11
for the answer i got 17 wouldn't it be a nagative 17?

and i need help with this one
3.4t + 19.36 = -10.22

i got 2.7 but my teacher said it was wrong
and im not so good at math so i really need help
and no im not trying to get answers i just dont know what im doing wrong PLEASE HELP!

2006-09-11 15:54:20 · 20 answers · asked by Anonymous

The sides AB and AD of a square are extended 10 cm and 6 cm. to form sides AE and AF of a rectangle. At most how long is the side of the square if the perimeter of the rectangle is at least twice the perimeter of the square? Please show equation and solve

2006-09-11 15:45:17 · 5 answers · asked by somerandomdude2006 1

2x^2-50
8x^6-32x^5+4x^4

2006-09-11 15:09:09 · 14 answers · asked by orlandob333 2

Let the function f be defined by f(x)=2x - 1. If 1/2f(squareroot of t)= 4, what is the value of t ?


Ok for that second equation its written as, one half times f of the square root of t equals four.

My school book says the answer is 81/ 4 (81 over 4).

2006-09-11 15:01:57 · 3 answers · asked by kyotzo 2

Esther drove to work in the morning at an average speed of 45 miles per hour. She returned home in the evening along the same route and averaged 30 miles per hour. If Esther spent a total of one hour communting to and from work, how many miles did Esther drive to work in the morning?

2006-09-11 15:00:02 · 8 answers · asked by beast 1

i forgot how to solve for y. i remember x. can you help me solve a couple of these problems:
1.) x - 2y= 4
2.) 3x+6y=24
3.)5+2(x+y)=11
thanks

2006-09-11 14:56:53 · 7 answers · asked by raq 2

2006-09-11 14:50:24 · 8 answers · asked by Espressologie 2

Ok so here is what i did, i wrote it over as sin(1/x)/(1/x) the denominator is the reciprocal of x and if multiplied out will be the same. NOW does this equal one? That is the answer my teacher gave me (that it is one) but im not sure if that is the correct work. I graphed it on my calculator but im not getting a good picture. Is it supposed to be in radians?

What about if you have the same problem but have x^2 in the beginning instead of x? the answer my teacher gave me is infinity, but that would have to be since i do the same thing idid above.
limx^2 (sin1/x) as x approaches infinity.
(x sin(1/x)/(1/x)= x(sin(1/x)/(1/x))= x*1 --> infinity times 1 equals infinity. is this correct? for both problems?
THANKS!!!!! im really stressing out over this!

2006-09-11 14:49:36 · 8 answers · asked by Anonymous

A custodian must move a shipment of books from the first floor to the sixth floor. The elevator's weight limit is 900 pounds. If the custodian weighs 160 pounds and each box of books weighs 37 pounds, find the maximum number of boxes the custodian can move on the elevator at one time.

2006-09-11 14:48:57 · 11 answers · asked by jason 1

64-z^6

2006-09-11 14:48:47 · 3 answers · asked by green_1_13 1

2006-09-11 14:46:41 · 8 answers · asked by Anonymous

2006-09-11 14:44:58 · 2 answers · asked by countryluver327 1

q(t) = q0[1-e^(-t/a)] q0 being a variable.

inverse i got t/[1-e^(-t/a)] = q0 and then I replace the t's with q0? Thanks!

2006-09-11 14:43:06 · 2 answers · asked by Ed F 1

I can't find the equations to use for this type of problem... if someone can just give me the equations that's great, if you can walk me through it that's even better.

Imperfections in an optical fiber are distributed according to a Poisson process such that the distance between imperfections in meters has an exponential distribution with paramter L = 2m^(-1).

a)What is the expected distance between imperfections?
b)What is the probability that the distance between the imperfections is longer than 1 meter?
c)What is the distribution of the number of imperfections in a 3-meter stretch of fiber?
d)What is the probability that a 3-meter stretch of fiber has no more than four imperfections?

2006-09-11 14:41:16 · 1 answers · asked by Anonymous 3

Trick question for mathgirl and all others who care to solve it.
Hint, It's a number without an end.....

2006-09-11 14:30:55 · 10 answers · asked by Anonymous

How do I determine the equation of a quartic function with complex roots 3 + 2i and 2 - 3i

2006-09-11 14:24:15 · 5 answers · asked by kira 2

Problem One: 2x + 3y = 1
3x + y = 5

Problem Two: 2/3x + 5y = 12
x + 1/2y = 4

I just want to know the algebraic steps, to solve the equation. I'm totally confused here. Help would be greatly appreciated!

2006-09-11 14:19:24 · 8 answers · asked by EARNEYW 3

2006-09-11 14:18:04 · 18 answers · asked by Jessie M 1

9ay-15a^2y

2006-09-11 14:15:33 · 4 answers · asked by green_1_13 1

2006-09-11 14:01:13 · 6 answers · asked by Roberta A 1

How do i plot a linear graph using excel?
I'm also trying to make a table and the value i want to enter in the table is 1/60 seconds and every time i press enter it gives me Jan-60...what am i supposed to do?

2006-09-11 13:49:40 · 3 answers · asked by girlwiththegoodies 3

2006-09-11 13:46:03 · 8 answers · asked by Anonymous

10 points for best answer

2006-09-11 13:45:29 · 7 answers · asked by Anonymous

2006-09-11 13:38:56 · 7 answers · asked by Anonymous

2006-09-11 13:24:55 · 17 answers · asked by Dominique M 1