Mathematics - 10 September 2007

I don't quite understand it like the five other ones i had, so does anyone like mind explaining it to me. I'm not saying just give me the answer and leave like other YA stupid a$$es, i want an explanation if you feel like adding it:

(9lxl + 3) - 5 lxl -3= 12

2007-09-10 15:37:27 · 4 answers · asked by |♥*/♥\*♥| 3

please explain how to solve:

100! / 98!2!

(100! Divided by 98! times 2!)

Please show any work, thanks :)

First answer = 10 points.

2007-09-10 15:35:33 · 2 answers · asked by Anonymous

Derek C, I appreciate the help.
Does your answer consider the possibility of three consecutive positive integers? Four?
Thanks so much

2007-09-10 15:35:28 · 2 answers · asked by Anonymous

how would i give a counterexample for "every rational number is an integer"

2007-09-10 15:33:29 · 2 answers · asked by josefina 1

Four-fifths of Mrs. Burrow's clas likes the color purple, while 7/8 of ms. chen's class likes the color....
what fraction of both classes like purple?
do i mutiply or add? or what?

2007-09-10 15:32:47 · 3 answers · asked by Lacy 1

2007-09-10 15:13:40 · 3 answers · asked by Claire P 1

Abe can row a boat at constant rate of 5 miles per hr in still water. on a river that flows with a constant current of x miles per hr, he rows up stream for 15mins and then rows down stream, returning to his starting point in another 12 mins. find the current's rate and total distance noah traveled on his boat trip

2007-09-10 15:05:38 · 1 answers · asked by Dollar 1

a manager wishes to reduce her prics for coffee by mixing 2 grades together. if she has 50 pds. of coffee which sell for 1.20 per pound how much cofee worth 80 cent per round must she mix with so that she can sell the final mixture for 1.00 per pound

2007-09-10 15:02:57 · 1 answers · asked by mschantell07 2

OKay my firned needs help.

The problems
My # is between 40 and 50 and is prime. What is it?

My # is a multiple of 10. Its a factor of 45. What is it?
My # is a factor of 20 alos of 30. WHAT is it?
My # is a multiple of 4. Its is less than 10.??

PLEASE HELPP HER!

2007-09-10 14:55:02 · 10 answers · asked by Anonymous

Ok so I'm doing my math homework and I come across a problem that looks like this:

Without grouping symbols, the expression 2 x 3^3 + 4 has a value of 58. Insert grouping symbols in this expression to produce the indicated values.

a. 62
b. 220
c. 4374
d. 279,936

I already have 'a' and 'b', but I need help with 'c' and 'd'.

Any help is appreciated!

2007-09-10 14:54:56 · 4 answers · asked by Anonymous

During a track meet, Kelly throws the shotput 36 feet, 35 feet, and 37 feet. Write an expression that represents the length of his average throw in feet. Evaluate the Expression.

2007-09-10 14:53:42 · 11 answers · asked by Anonymous

can anyone tell me the pattern?

1, 8, 27, 64

thanks

2007-09-10 14:52:31 · 3 answers · asked by Lindsay M 1

i need it in the a+bi form

2007-09-10 14:50:45 · 2 answers · asked by ksm5926 1

i have a question on factoring how owuld you factor lets say these X(2x-1)+2(2x-1) and (x+3)^2-3(x+3) and 8x^4-31x^2-4 Im having trouble factoring those Help would be appreciated thank you!!

2007-09-10 14:35:05 · 2 answers · asked by crocop49 1

My Professor told the class that we could earn extra credit on the test by finding out what the Chebyshev Theorem formula was and how to use it. I'm trying to get as many extra credit points as I can since you never know what's going to come up in the future.

2007-09-10 14:33:14 · 5 answers · asked by Anonymous

2007-09-10 14:29:00 · 10 answers · asked by Arlene B 1

example : one thousand in standard form is 1000 but what's one billion?

2007-09-10 14:27:43 · 14 answers · asked by Windy-Cindy 1

This is one of those questions where you have to figure out how much a person bought of each thing to have a certain final bill.


Wayne is building a shed in his backyard to store his snowmobile. "Value Hardware" sells 3-in finishing nails for $0.99/lb and 2-in finishing nails for $1.39/lb.

Wayne needs 5 lbs. of nails. If his bill totals $6.15, how many pounds of each size did he buy?


Please show me how to solve this problem and the other kinds like these!!! They are so frustrating!

2007-09-10 14:27:23 · 3 answers · asked by 2 days after my B day :) 2

number of t-shirts and total cost
10 --------------------- 75
15 --------------------- 105
20 ----- --------------- 135

what is the cost of 1 t-shirt?

2007-09-10 14:18:03 · 4 answers · asked by daniella 2

thanks a lot in advanced

2007-09-10 14:13:16 · 4 answers · asked by mfgrocker 2

2007-09-10 14:08:47 · 7 answers · asked by Anonymous 2

i cant understand my math teacher and i have no idea how to solve for factorial division with 2 #s at the bottom. so can someone explain how you solve it step by step. an example would be 15!/3! 8!

2007-09-10 14:03:18 · 3 answers · asked by lol 1

When multiplied and simplified, 2x(x + 1) equals?

I distributed to get (2x^2)+2x, does it simplify further?

2007-09-10 13:59:17 · 5 answers · asked by Bluefast 3

A company find that there is a linear relationship between the mount of money that is spends on advertising and the number of units it sells. If It spends no money on advertising, it sels 300 units for each additional $5000 spent, an additional 20 units are sold.

if x is the amount of money that the company spends on advertising, find a formula for y, the number of units as a function of x

Thank you!!

2007-09-10 13:53:49 · 6 answers · asked by n8van2 2

Please explain and show every step

Find the number of terms in each of these geometric sequences:

a) (4, 12, 36,...,236196)

b) (48, 36, 27,..., 6561/1024)


Find the 6th term for the following:

a) (21, 9, 27/7, 81/49,...) Leave in fractional form

2007-09-10 13:51:25 · 2 answers · asked by Physics 101 1

64 l = how many ml?
75 watt light bulb is 6,250 mA what us this current in amperes?
4,046.9 m 2^ = ( ) km 2^ ?

2007-09-10 13:51:08 · 9 answers · asked by chris b 1

Hello All, I'm Having A-Bit Of A Problem Understanding These Conditional Statements.........
I Will Give You The "Instructions" and the Whole Problem.
Please Answer And EXPLAIN!!!
Thank You
=================================================


Tell whether each of the following is the converse, inverse, or contrapositive, original conditional, of none of these using the original statement: " I like school, if I don't have too much homework."


1)_____________If I have too much homework then I don't like school.
2)_____________If I don't have too much homework, then I like school.
3)_____________If I don't like school, then I have too much homework.

2007-09-10 13:50:56 · 1 answers · asked by Matthew S 1

10. (5,4) and (7,4)

11. (2,6) and (-3, -4)

12. (-2,3) and (4,-6)

How do I do these?

2007-09-10 13:45:39 · 14 answers · asked by Kristen V 3

An implicit equation for the plane passing through the point (-4,2,-3) that is perpendicular to the line L(t)=<1-2t,-3-2t,4+2t> is ___________

i'd appreciate it if you guys would answer and also explain the process because i really want to get this concept. thank you.

2007-09-10 13:43:13 · 3 answers · asked by kimbokrn 2

how do you know when to put an answer, as a square root or round it up to two decimal points? can you just pick whichever method you want to do?

2007-09-10 13:41:11 · 5 answers · asked by ♣♥♠♦ 3