Mathematics - 19 August 2006

David is three times as old as Susan was when David was as old as Susan is now. Susan is now 16. How old is David now?

Hint: The difference between their ages is always the same.

2006-08-19 16:55:40 · 6 answers · asked by Jerry M 3

I am talking with one of my "Math Buddies" and he gave me this in one of our email conversations:

[x(^(y
Let's say
X= 1
Y= 2
N= 3,

The problem will be [1(^2<3)-1)], What does this mean? And please put it in words.

Example: 2 + 3 = 5 means "Two Plus Three Equals Five".

I know the up arrow means "To the __ power", but what does the side arrow mean?

Thank you in advance.

Oh also, I already know how to do the problem (what order to do things in), but I don't know what the side arrow means..... Please help.....

2006-08-19 16:24:20 · 9 answers · asked by Asterisk_Love♥ 4

L=5M
H=25M
W=2.80CM
REMEMBER CUBE!!!!!! EXACT ANSWER PLEASE

2006-08-19 15:42:35 · 15 answers · asked by _heart me♥ 1

Or, how many football fields in an acre? In other words, what is the ratio of acre to professional (american) football field.

2006-08-19 15:15:26 · 18 answers · asked by best_little_bookworm 2

Is this rating scale, especially in medical usage, meant to be incremental or exponential?

2006-08-19 14:00:30 · 8 answers · asked by Nitris 3

I read about it in a book ( a wrinkle in time) but didnt fully understand it, but im interested in knowing!

2006-08-19 13:55:16 · 13 answers · asked by lilygrace 1

The function is read as
"5x divided by [The square root of (x raised to the second + 3)]

2006-08-19 13:20:44 · 2 answers · asked by tjhauck2001 2

f(x+h) is ONE term

thank you so much for helping!

2006-08-19 12:52:35 · 8 answers · asked by Anonymous

2006-08-19 12:35:18 · 26 answers · asked by Lisha 1

thnx for your help

2006-08-19 12:15:46 · 6 answers · asked by Anonymous

2006-08-19 12:04:11 · 8 answers · asked by Lisha 1

2006-08-19 11:52:32 · 6 answers · asked by Lisha 1

You must strike through every dot only using four lines. Rules: Can only use four lines. Once you start you can not pick up ure pencil. Canot duplicate a line.

2006-08-19 11:40:56 · 11 answers · asked by sweetcandy 1

Also why can the measure of 2 angles be equal but the angles are congruent? For example, the measure of angle A is equal to the measure of angle B but angle A is congruent to angle B.

2006-08-19 11:35:37 · 6 answers · asked by gateach 5

2006-08-19 11:26:52 · 11 answers · asked by bialek2003 1

2006-08-19 11:25:21 · 8 answers · asked by Princess_IN_Training 1

2006-08-19 11:22:35 · 3 answers · asked by Lisha 1

Here it goes: In how many equal parts can any piece of paper be folded?
I have the answer already, but who answers correcly will get the points and I'll choose his/her answer as the best answer. By the way, there's only 1 answer to it haha.

2006-08-19 11:20:33 · 11 answers · asked by Zach 3

Third son gets a fifth. How many ships does each son get?

2006-08-19 10:58:44 · 20 answers · asked by xenon 6

2006-08-19 10:54:19 · 10 answers · asked by Lisha 1

thnx for your help =]

2006-08-19 10:42:36 · 14 answers · asked by Anonymous

And what is it's significance?

2006-08-19 10:42:30 · 23 answers · asked by Jude 7

(square root of -16) divided by 2

2006-08-19 10:29:44 · 6 answers · asked by Anonymous

2006-08-19 10:19:19 · 16 answers · asked by list 3

2006-08-19 10:04:52 · 16 answers · asked by Richard B 2

I have a short no more than five minute word problem. It is very easy..but i just need someone to check it...

Situation: Triangle tom lives in a triangualr house with some rectangular rooms. This living room is 10ft wide and 15 ft long. His game room is 20 ft by 30 ft- thus the dimensions are doubled.


Problem: Triangle toms living room is 20 ft high and his game room is double that: 40ft high. He wants to fill his game room half way up with colored plastic balls. Since all the dimensions are doubled he's only filling half the game room, he thinks the amount of space would be the same as that of the entire living room. Is he correct?

My answers: I said no, his prediction was wrong. The game room is 24,000 ft while his living room is 6000.

2006-08-19 10:00:52 · 14 answers · asked by ? 2

Could a number divided by zero be equal "infinity"? Could "infinity" multiplied by 'n' be equal "random"?

2006-08-19 09:57:05 · 12 answers · asked by PhiL& 2

when the (x,y) coordinates are indicated at an extremum?

Assume the curve is concave down and it has a maximum at
(-3, -6), is it possible to find the value of the derivative
given the graph and the (x,y) coordinates
?

2006-08-19 08:53:24 · 9 answers · asked by tjhauck2001 2

2006-08-19 08:52:41 · 7 answers · asked by D 1

circle O int he above figure has a diameter of 6. if the central angle formed measures 60 deg , what is the lenght of the intercepted arc

2006-08-19 08:51:17 · 7 answers · asked by haxincrypt0naut 2