Mathematics - 30 September 2007

which of the folllowing shows that the length(l) varies inversely as the cube of the width(w)
A)L=W^3/k
b)kw^3=L
c)L=k/w^3
D)kL=w^3

2007-09-30 14:39:11 · 3 answers · asked by hgfdthgfdthgfdthgfdthgfdthgfdthg 1

2007-09-30 14:37:13 · 6 answers · asked by STEPHANIE H 1

Write the equation of the line passing through (–1, –3) and (2, –3).

2007-09-30 14:33:38 · 5 answers · asked by Jessica B 1

2007-09-30 14:32:27 · 11 answers · asked by ayy bay bay<33 1

A recycling center has 100 kilograms of shredded plastic yogurt containers. What volume is needed to hold this amount of shredded plastic? How many 10-liter (10,000 ml.) containers do they need to hold all of this plastic? Hint 1m^3 = 1,000,000

2007-09-30 14:25:20 · 2 answers · asked by Fruitsickle 2

(x) = 5x-X^2, [f(5+h) - f(5) / h ] , h is not equal to 0

Directions: Find the difference quotient and simplify.
How would I do this?

2007-09-30 14:24:00 · 1 answers · asked by :] 3

Originally chicken mcnuggets from mcdonald's could be purchased in quantities of 6, 9, or 20. If n nuggets can be ordered as a combination of 6, 9, and 20 it is called a mcnugget number. For example, 21 is a mcnugget number since one would order 2 boxes of 6 mcnuggets and one box of nine mcnuggets. Find all positive integers that are NOT mcnugget numbers, and explain how you know that the last in your list is in fact the last non mcnugget number...

This is crazy hard and i'm stumped, any help?

2007-09-30 14:11:37 · 2 answers · asked by greenwhite_lax 1

The staff of a small company includes 3 secretaries, 18 technicians, 2 engineers 1 executive and 39 factory workers. If a person is selected at random, what is the probability that he or she is a factory worker ?

2007-09-30 13:57:28 · 5 answers · asked by Ryan =] 1

Erin wanted to know the height of another triangle. She knew the base was 20 ft., and the area was 60 sq. ft. Find the height.


can u tell me what formula to use and how to do it?? please????

2007-09-30 13:51:20 · 7 answers · asked by Anonymous

What is the value of X?

(x / 5) - (x / 6) = 1

2007-09-30 13:45:51 · 11 answers · asked by rothj06 2

2007-09-30 13:43:05 · 8 answers · asked by Anonymous

I'm really stumped on this one; can anyone help me please?

The number N of bacteria in a culture is given by the model

N = 100e^kt

where t is the time (in hours). If N = 300 when t = 5, estimate the time required for the population to double in size.

Don't just give the answer; that is of no use to me. Step by step explanation please.

2007-09-30 13:40:07 · 5 answers · asked by ? 2

how do you graph x=y squared-can someone do it on paint or something or explain or provide a link?
is y a function of x?

2007-09-30 13:40:06 · 10 answers · asked by yellowducks 1

Find C such that polynomial function f(x)=4x^3 + Cx - 27 has a double root

2007-09-30 13:39:03 · 1 answers · asked by Jake W 3

2007-09-30 13:37:43 · 2 answers · asked by markusa_j 1

(3x)/(x+1)
at point (1, 1.5)
i got
y=(3/4)x+(5/4)

2007-09-30 13:25:41 · 3 answers · asked by m_carl 1

9x^2-67-1112

I need to put it in ( )( ) form, so I need to use foil..... but, it's a little hard.

2007-09-30 13:15:46 · 5 answers · asked by DeLeon Leon 2

determine the coordinates of the vertices of the triagngle formed by the lines: (algebraic solution)
2x + 5y = 16
4x - 3y = 6
3x + y = -2

Find the EXACT coordinates fo the centroid
(you solution should be algebraic)

2007-09-30 13:13:16 · 1 answers · asked by xx_jewels 2

In a recent year a baseball team paid six times as much to their ace pitcher as they paid to their shortstop. If they paid $42 million for the two salaries, what did they pay each player?

So, how do I find out

1. What was the pictures salary (millions of dollars)
2. What was the shortstop's salary?

Thanks.

2007-09-30 13:11:53 · 2 answers · asked by Question Asker 1

How many two-digit numbers exist such that when the product of its digits is added to the sum of its digits, the result is equal to the original two-digit number? List the numbers. Explain your reasoning.

2007-09-30 13:00:56 · 6 answers · asked by Coolkid81 3

A 7 1/4 inch circular power saw rotates at 5200 revolutions per minute.

Find the linear speed (in feet per minute) of one of the 24 cutting teeth as they contact the wood being cut.

2007-09-30 12:51:21 · 3 answers · asked by dani010191 3

how do u do adding and subtracing unlike frations...............i don't understand plz lke 5/8+(-3/4)

2007-09-30 12:36:22 · 7 answers · asked by Evelyn S 2

Find two positive real numbers that difffer by 1 and have a product of 1

2007-09-30 12:25:13 · 2 answers · asked by plplz 1

find real or imaginary solutions:

x^-2 - 9x^-1 +18 = 0

2007-09-30 12:19:28 · 1 answers · asked by plplz 1

My friend needs help on this.
18=c+5
-----
2
Thanks to anyone who helps! And can you show the steps?

2007-09-30 12:15:56 · 6 answers · asked by Marianna 2

49x^2 + 9 = 42x

&

6x = 19x + 25 / x+1 <--(fraction)

2007-09-30 11:53:14 · 1 answers · asked by plplz 1

http://img504.imageshack.us/img504/1048/mathbq1.jpg

The answer is 2x + 3y.
How do I arrive at the answer?
A step by step solution will be appreciated.

2007-09-30 11:43:19 · 3 answers · asked by david 2

logically, where does the rule come from?

2007-09-30 11:32:28 · 4 answers · asked by Anonymous

A bag contains red, white, and blue marbles of which 2/3 of the marbles are blue. If there are 1/3 as many red marbles as blue, and there are 20 white marbles in the bag, how many marbles are in the bag?


A. 60
B. 100
C. 120
D. 140
E. 180


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If a and b are different prime numbers greater than 2, and n = a x b, then how many positive factors, not including 1 and n, does n have?

A. 0
B. 1
C. 2
D. 3
E. 4

2007-09-30 11:31:46 · 2 answers · asked by Anonymous

which of these 3 choices are right....i kinda eliminate the others that i think is not right...but i could be wrong...

A) y(lnx+1)
B) xy (2lnx+1)
C) -y (2lnx-1)

2007-09-30 11:26:04 · 2 answers · asked by ph103 1