Mathematics - 1 October 2007

more than Brian. How many does each of them has?

Please, plase help me. Showing the work would be even great!!

2007-10-01 14:21:19 · 18 answers · asked by erikck 2

2007-10-01 14:05:36 · 2 answers · asked by kountry_kandi 2

2007-10-01 14:04:06 · 2 answers · asked by Anonymous

What is the difference between the translations y=kf(x) and y=f(kx)

2007-10-01 14:02:47 · 3 answers · asked by To-the-Stars 4

Seventy-two identical banquet dinners cost a total of $_67.9_. (Sorry, I could not remember the first and last digits. ) How much did one dinner cost?

2007-10-01 13:55:05 · 2 answers · asked by big daddy 2

lime as x goes to infinity sin x?

They both don't exist right? because it oscillates too much?

2007-10-01 13:47:00 · 4 answers · asked by xblah900x 1

R^2-------> R^3
L(x) = x1b1 + x2b2 + (x1+x2)b3
where x = (x1,x2)
b1 = (1,0,1)
b2 = (1,1,0)
b3 = (0,1,1)

2007-10-01 13:32:58 · 2 answers · asked by Anonymous

is 121 a prime #?

2007-10-01 13:28:04 · 4 answers · asked by idk 1

You want to order a deli platter for a sports banquet. You need 12 pounds of meat and cheese. You want twice as much meat as cheese on the platter and an equal amount of ham and turkey. The price per pound is $4.95 for ham, $6.99 for turkey, $7.99 for roast beef, and $4.36 for cheese. How many pounds of each should you order if you plan to spend $69.24?

I have thought this over for about an hour and I just now realized that the word 'meat', in the first part refers to the beef, the turkey, AND the ham =(. I can't believe I've only gotten this far, everyone else in my class understood it, but I'm stumped. I need to make this data into equations so I can solve it using matrices. Don't tell me the answer, just sort of point me in the right direction if you can. Thanks ahead of time.

2007-10-01 13:18:31 · 1 answers · asked by Anonymous

Your aunt and uncle have been visiting at your home. Five minutes after they drive away, you realize that they forgot their luggage. You happen to know that they drive slowly, so you get in your car and drive to catch up with them. Your average speed is 10 miles an hour faster than their average speed, and you catch up with them in 25 minutes. How fast did you drive?

It says to use the following verbal model:

your speed = their speed + 10 miles

your speed x your time in hours = their speed x their time in hours

The answer in the back of the book says it's 60 mph. =/

2007-10-01 13:18:03 · 1 answers · asked by Anonymous

A.) Write the equation to the tangent line to the prabola y=x^2 @ (a,a^2).
B.) Find all tangent lines to the parabola y = x^2 that pass through (0,-2).

----Now let (c,d) be a point which may or may not lie on the parabola.
C.) Make a conjecture as to how many tangent lines of the parabola pass through a given point (c,d). How does the answer depend on the point (c,d)?
D.) Give conditions on c and d which tells us whether we have exactly 0, 1 or 2 tangent lines through (c,d).
E.) What do these conditions tell us about the location of the point (c,d) with respect to the parabola?

Some help please? I am lost with this problem and it's due tomorrow.

2007-10-01 13:11:10 · 2 answers · asked by jtaylor 1

Member since: February 03, 2007
Total points: 0 (Level 0)
Points earned this week:
--% Best answer

weeniehead =]
S Math word problem?
Your aunt and uncle have been visiting at your home. Five minutes after they drive away, you realize that they forgot their luggage. You happen to know that they drive slowly, so you get in your car and drive to catch up with them. Your average speed is 10 miles an hour faster than their average speed, and you catch up with them in 25 minutes. How fast did you drive?

Please explain. =]

2007-10-01 13:02:09 · 3 answers · asked by yupp. 1

Please tell me how you got the answer. Thank You. =D

2007-10-01 12:51:55 · 4 answers · asked by Wendy F 1

Hey,,
i'm tryin to change feet into cubic feet,can u explain the formula on how to do this,and do this one for me too also
thanks
change 11.5 X(width) 15.4(length) X 7(height) into cubic feet
those are all measurements in feet

thanks alot

2007-10-01 12:51:45 · 4 answers · asked by Anonymous

a square piece of cardboard is to be formed into an open-topped box by cutting 5 inch squares from the corners and folding up the sides. what is the volume of the box if the original length of each side is 19 inches?

2007-10-01 12:47:18 · 1 answers · asked by rosalia r 1

Let f(x) be a polynomial function such that, for all real x,

f(x²+2)=x^4+10x²+4.

Evaluate f(x²-2)

This is a prec-calculus question that i need help with....please someone help me....i dont understand it!!! :s

2007-10-01 12:47:09 · 3 answers · asked by George A 1

Solve.

3/4C + 18 = 42

(C is the variable. What's C?)

2007-10-01 12:45:57 · 2 answers · asked by Yahoo! King 1

231
322
432
454

2007-10-01 12:44:05 · 8 answers · asked by john s 1

What are the factors of 36 and 108?

2007-10-01 12:39:55 · 2 answers · asked by Paige P 2

i have no idea how to do this please help!

2007-10-01 12:37:34 · 4 answers · asked by Elle 3

show work please so i can compare.

2007-10-01 12:32:00 · 4 answers · asked by Anonymous

this is one of those fill in the blanks math problems i solved the math but im horrible at the fill in the blanks part please help!

the answer is soposed to answer the question what do you call two railroad trains after a collison!

I already have..... AW_EC_ED_A_ _ _ _

my choices are...... B, L,T,E,K,R,S,H

PLEASE HELP ME! I HAVE DONE THE MATH JUST NEED HELP WITH THE WORD PART!

2007-10-01 12:29:45 · 8 answers · asked by *justalittlediffernt* 2

How do you turn "t less than 23 divided by u" into algebraic form? It's part of my homework. I know it's kind of easy for some people, but this is too confusing for me.
>.<

2007-10-01 12:25:47 · 8 answers · asked by Anonymous

I really need help on this, exam is tomorrow morning.
If F(x)=Integral from 0 to sqrt(1+x^2) of cos(t^2)dt. To what is equal its derivative? I tried this way : I put G(y)=integral from 0 to y of cos(t^2)dt. I notice that F(x)=G(sqrt(1+x^2)), so F'(x)=G'(sqrt(1+x^2)).2x/(2sqrt(1+x^2)). At final it gave me xcos(1+x^2)/sqrt(1+x^2). Is it right?
Then come the big problem. I could do this only because I knew how to derivate an integral starting from 0 to something else, but now, I have to derivate the integral from cosx to x^4 of 1/(1+z^2)dz. How to do so? Please explain each step and give me the answer.

2007-10-01 12:04:30 · 1 answers · asked by Anonymous

I'm thinking the answer is 'to set the quadratic equation equal to zero.' Can anyone verify if that's correct for me?

2007-10-01 12:01:55 · 3 answers · asked by Jami H 1

Compute the maximum value of x+y for all positive integer pairs (x,y) that satisfy 15x+55y=2000

if you could explain to me how you got it that would be great!

2007-10-01 11:32:53 · 3 answers · asked by Anonymous

t - (-16) = 9............t=???

2007-10-01 11:32:16 · 21 answers · asked by coolio_gal 1

Can any one help me with this.. can you answer all of them..



4x + 3 = - 5

-x + 7 = 12

2t - 8t + 1 = 43

0 = -7n + 4 - 5n

2007-10-01 11:22:17 · 4 answers · asked by whitefire 2

A bag of 2000 chips is used in a game for two players, who take turns drawing 2, 3, 4, 5 or 6 chips each, but no other amount. The player to draw last loses. I can always win if i go first. How many chips do i need to draw first to guarente that i win? what is my susequent strategy?

Im not that fast with math when a math teacher gives me word problems i get all confused so if you could explain to me how i figure this out that would be great! ^.^

2007-10-01 11:22:11 · 3 answers · asked by Anonymous

I Kinda forgot how to do equations with fractions.

Example:

m/4 + m/4 = 14

Can anyone please help?

2007-10-01 11:14:56 · 5 answers · asked by Jeff D 1