Mathematics - 5 July 2007

2007-07-05 23:40:46 · 4 answers · asked by Anonymous

2007-07-05 23:27:42 · 11 answers · asked by CPUcate 6

triangle whose sides are 2 ft, 2 ft and 3 ft is revolved about its longest side. find the volume generated

2007-07-05 23:22:59 · 5 answers · asked by CPUcate 6

y= (x^3) / ( (x^2) - 1)

y equals x cubed divided by x squared minus one

the question asks whether this equation is even or odd? What does that mean? help?

2007-07-05 19:45:01 · 6 answers · asked by Anonymous

There are 42 pupils in a class. ¾ of the boys and 2/3 of the girls travel to school by bus.

The total number of boys and girls who travel to school by bus is 30.

(a) How many boys are there in the class?
(b) How many girls travel to school by bus?

2007-07-05 19:44:56 · 6 answers · asked by Anonymous

Find the number that comes next in the following sequence: 40,45,33,38,27,32,22,27,..

2007-07-05 19:38:32 · 16 answers · asked by Anonymous

Find the number that comes next in the following sequence: 8,12,18,27,..

2007-07-05 19:31:36 · 11 answers · asked by Anonymous

how to use calculator to graph a heart??

2007-07-05 19:12:02 · 5 answers · asked by specialdao 2

how do i construct a 105 degree angle?

2007-07-05 18:51:18 · 7 answers · asked by Anonymous

Factor.
Explain/show steps:
(x-y)²-3(y-x)³=

2007-07-05 18:47:47 · 7 answers · asked by Anonymous

easy and simple for someone to understand very quickly

2007-07-05 18:41:13 · 3 answers · asked by wolf fang 2

Last 2 questions I hope which I need help on...

1. If you are dealing from a standard deck of 52 cards,

a) how many different 5-card hands could have at least one spade?
b) how many different 5-card hands could have at least two face cards (jacks, queens, or kings)


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2. A theme park has a variety of rides. There are seven roller coasters, four water rides, and nine story rides. If Stephanie wants to try one of each type of ride, how many different combinantions of rides could she choose.

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Like the previous ones, I am not understanding these ones either... Can someone also provide tips on how to solve these combination questions..please...

sorry and thanks

2007-07-05 18:35:49 · 2 answers · asked by mapleleaffan 1

I figured you may like getting 2 points or even a Best Answer out of simple work like this:

x-9=-6y
what is y when x=1?

Decimal form should be okay

2007-07-05 18:29:11 · 9 answers · asked by Anonymous

x-9=-6y

2007-07-05 18:13:16 · 6 answers · asked by Anonymous

I'm working on a question that I really need some help with. It involves a relationship between the length in feet (l) of a column and the force in grams (f) it takes to buckle. The function is modelded as such: f = (k / l ^ 2)

I know that this is an inverse function becasue the function does not pass through the origin or the point (0,0). Here is what I need to know.... If k = 2000, I need to find the force needed to buckle the column of a length if 15 feet. Here is the function I have modeled and I hope it is correct:

f = (2000 / 15 ^ 2)

I have no idea how to solve this problem from here.

The next question is if the force required to buckle the column was 60 grams, I need to find the length of the column. I think the function looks like this...

60 = (2000 / l ^ 2)

Don't know where to go from here?

I really need some help and as soon as possible please. I will of course award 10 pts for best answer.

2007-07-05 18:11:59 · 1 answers · asked by fastertiger 2

Ugh...I am stuck on this other question too...

The game of euchre uses only the 9s, 10s, jacks, queens, kings and aces from a standard deck of cards. How many five-card hands have...

a) all red cards?
b) at least two red cards?
c) at most two red cards

I dont know how to go about with these questions, and keep on getting the wrong answers...

Please help me

Thanks

2007-07-05 17:54:12 · 5 answers · asked by mapleleaffan 1

I am stuck on this question, and i really really need help! please please!

A project team of 6 students is to be selected from a class of 30.... Pierre, Gregory, and Miguel are students in this class. How many of the teams would include these 3 students...

I know the answer is 2925, but i have no idea how to get that answer!

Thanks thanks thanks!

2007-07-05 17:31:27 · 5 answers · asked by mapleleaffan 1

Solve the equation sinx = sin(x+2) for x is between or equal to 0 and 2 pie. (hint: Use the unit circle definition of sine for circular funtions)

2007-07-05 17:28:11 · 5 answers · asked by daniel 1

I know what a prime number is ( A number only divisible by itself or 1) I want to know if there is an easy formula to work out Prime Numbers when they get into the hundreds and thousands etc . Otherwise I could sit here for years ? lol.

2007-07-05 17:24:55 · 12 answers · asked by Anonymous

9x+5y=45

What is y when x =1.

This is for graphing by the way..... I thought it'd be 9 but that answer was wrong.

2007-07-05 17:13:04 · 9 answers · asked by Anonymous

A triangle has one 90 degrees angle and from there one leg is 10.25 long and the other leg is 7.75 long. what are the degrees for the other two angles. Thank you

2007-07-05 17:09:57 · 8 answers · asked by clemaube 1

Please help solve and explain the problems for me.

tan(2 arctan x)

cos(2 arcsin x)

2007-07-05 17:09:40 · 3 answers · asked by Binky 3

Hi, I am on summer break and I am really worried. I dont want to foreget my math skills but it seems I am. Is there anything that would be REALLY helpful to help keep myslef sharp. I still have all of my notes from school. I really want to make sure I dont forget. I know that I will never foreget but I want to make sure and refresh my mind. Please help! Thanks in advance for all of the advice.

Add: I am my moms human calculator when we go grocery shopping and I tutor kids. I just finished Algebra 1 and I am going into geometry. Just some additional info. Thanks again!

2007-07-05 17:07:55 · 5 answers · asked by Dogna M 4

Is it zero, one or infinity?

2007-07-05 16:51:21 · 24 answers · asked by marc 2

solve each inequality:

a) 1 < ln x < 6

b) e^(2-3x) > 5

2007-07-05 16:46:53 · 4 answers · asked by Anonymous

Well I want to know because alot of his work inspires me.

2007-07-05 16:46:38 · 2 answers · asked by Anonymous

in the expression 2+(a-b), is the number 2 also an algebraic term?

2007-07-05 16:44:39 · 3 answers · asked by Anonymous

f(x)=(3+exp(x))/(3-exp(x))

?

2007-07-05 16:44:39 · 3 answers · asked by Anonymous

2007-07-05 16:40:45 · 2 answers · asked by Asker_765 3

I am laying a wood floor, and the boxes are sold acording to square footage. I am not quite sure how to figure regular feet measurments into square feet measurments.

2007-07-05 16:34:35 · 10 answers · asked by Jane L 1