Mathematics - 11 November 2007

Lol, I feel dumb at the moment.

2007-11-11 09:11:30 · 8 answers · asked by pocho 2

I am given: alpha = 45, a=3, c=4

I have to find beta, gamma, b

please help and explain this step by step, I want to get the idea of how to do these. thanks

2007-11-11 09:08:01 · 3 answers · asked by Anonymous

2007-11-11 09:02:19 · 1 answers · asked by whitmeeeee 1

how do you figure out the area from i side to the other if its diagnal. i dont know how to and it would be helpful if you could help. thanx

2007-11-11 08:55:23 · 6 answers · asked by hannah1 2

2007-11-11 08:55:04 · 6 answers · asked by wittly l 1

I already did this problem but I don't know if it's right.

Solve using Synthetic Division

2x^3+5x-2 divided by x+1/2

2007-11-11 08:48:51 · 2 answers · asked by Anonymous

i understand how to do systems of equations, but this one's a little complicated.
9a+7b=--30 (negative 30)
8b+5c=11
--3a+10c=73 (negative 3a)
when i solve this by elimination, it'll give me no solution, and when i solve it by substitution it'll give me infinite solution. and in the back of the book the answers are (--1,--3,7) a=--1, b=--3, c=7. i can't find an example for this in the book! please, somebody help me.

2007-11-11 08:48:15 · 3 answers · asked by isabela m 1

http://img143.imageshack.us/img143/2391/712cylindersconesandsphot4.jpg

2007-11-11 08:37:13 · 3 answers · asked by Anonymous

2007-11-11 08:22:58 · 7 answers · asked by mrj 1

2007-11-11 08:12:53 · 6 answers · asked by Nicole D 1

I want to use the sum or difference identity for cosine

2007-11-11 08:05:56 · 4 answers · asked by Tae M 1

2007-11-11 08:05:18 · 2 answers · asked by Nicole D 1

2007-11-11 08:05:14 · 8 answers · asked by mmmmm! 1

Owen has a 3in by 5in photo. he wants to make as large as he can to fit in a 10in by 12.5in ad.

What scale factor will he use?

What will be the new size?

2007-11-11 08:01:41 · 4 answers · asked by gadfgfrsdfer 3

My first dilution was placing .1711 grams of lead acetate into 10 ml of water.

But then I placed 1ml of the previous solution into 9 ml of water.

The real problem is....I have no idea how to *explain* what I did , quantify it for a report (i.e, explaining I have a 1000x dilution of lead acetate) and show work on how I came to the conclusion I have X times dilution...I've totally blanked on the explanation and other websites only made me more confused....please help.

2007-11-11 07:58:59 · 5 answers · asked by sasazxzxzzx x 1

also which is greater 0 or negative 4.

and what is the lcd of this pair of fractions 3 over 25 and 4 over 20.

and can you please solve the proportion of 5 over n = 2 over 3.

2007-11-11 07:54:12 · 14 answers · asked by Anonymous

1. the sum of two consecutive integers is 28.find the integer.
2.the sum fo an integer and 15 more than the integer is 57. Find the integer.
3.The sum of three consecutive integers is -30.what are the integers?
4.The sides of a triangle are consecutive integers. If the perimeter of the triangle is 240 unites, find the length of each side

2007-11-11 07:53:56 · 5 answers · asked by shelby.sheperd 1

ok so if an athletic field is build in the shape of a rectangle with X as it's length and the rectangle is capped by a semicircles at both ends with a radius R. the field is bounded by a 400meter track. What value of X and R will give the rectangle the largest possible area?
IM NOT LOOKING FOR AN ANSWER, I JUST NEED TO KNOW HOW TO START THE PROBLEM...

2007-11-11 07:53:37 · 2 answers · asked by broken_monkey08 2

ok my algebra teacher gave me this word problem to do, and I AM TOTALLY CONFUSED. everything i try doesnt work. someone help:

Every morning, Mike the security guard at CP high school opens all 100 doors in the building. Let's assume the doors are #'d 1-100. The next security guard closes all even numbered doors. The third security guard touches all doors that are multiples of 3. If a door is open, he'll close it and vice versa. The fourth guard changes the position of every fourth door (if it's open he'll close it etc.,) and the fifth guard changes the position of every fifth door and so on, until the 100th guard changes only door 100.

HOW MANY DOORS ARE LEFT OPEN IN THE END?

you also need to explain which doors would be open if the doors went up to 1000. Assume the last guard changes only door #1000.



whew, so that's the problem
someone help!

2007-11-11 07:53:00 · 6 answers · asked by Anonymous

how many people would you execute? Show your work.

2007-11-11 07:52:51 · 4 answers · asked by jiahua448 4

Find a value for K that would make the equation linear: y=kIxI+7 (there are absolute value bars infrong of x so its a function right now) thanks.....

2007-11-11 07:45:21 · 5 answers · asked by tennisgrl9294 3

Translate these verabal expression into a mathematical expression: Twice the product of eight more than a number.

Use x as variable.

2007-11-11 07:42:05 · 11 answers · asked by Anonymous

2007-11-11 07:39:53 · 1 answers · asked by laura m 1

Also for 65, 104. AND 252, 264

Thanks!

2007-11-11 07:39:40 · 6 answers · asked by Anonymous

Prove than (1-cosx)/sinx is the same as tan x/2?

so far ive got:

(1-cosx)/sinx = 0

1/sinx - tanx = 0

Am i heading in the right direction?? Could anyone help me find the answer?

Thanks

2007-11-11 07:38:06 · 2 answers · asked by Jen 3

2007-11-11 07:32:06 · 2 answers · asked by Dan Da Man 2

2007-11-11 07:31:59 · 9 answers · asked by mmmmm! 1

Yes, I know, they keep coming, but they've been getting harder, so. :)

So, what how do you set this problem up into two different equations?

*Low fat milk is 1% milk fat, and whole milk is 4% milk fat. How many ounces of each could you combine to make a 9-ounce mixture of milk with 2% milk fat?

2007-11-11 07:31:04 · 1 answers · asked by isabelle.the.insomniac 2

2007-11-11 07:30:22 · 3 answers · asked by Anonymous

1. y= -1/4x^2+3x-1 to standard form


2. y= -3(x+1)^2 + 2 to transformational form

2007-11-11 07:24:33 · 3 answers · asked by Anonymous