Mathematics - 19 November 2007

2007-11-19 10:01:43 · 5 answers · asked by Matt H 1

2007-11-19 09:54:17 · 7 answers · asked by That's Trippy S2 1

I need to find the last two digits of 37^1992. The hint is to divide by 100 and find the remainder.

I've looked at similar questions and answers here and elsewhere, but the numbers are much simpler and no one seems to explain how to solve the problem.

Please help.

2007-11-19 09:53:09 · 2 answers · asked by Anonymous

This may sound stupid but my mind has gone blank on how i would input logs into this equation.

3^x+1 = 15

Note: ^ means the 3 is to the power of x+1

I can use logs with e easy enough but stuck on this.

Throughout explanation would be grateful

2007-11-19 09:52:03 · 4 answers · asked by Paul T 1

2007-11-19 09:48:10 · 7 answers · asked by Anonymous

how would you find the center and radius of this equation?? I missed the class, and I don't have the notes yet!! Please help!!

X^2 + y^2 = 16

and could someone please tell me how to MAKE and equation from the points??

Center (0,0) radius =5

Please explain how you get each answer!! I don't just want the answers!! thank you soooooooo much!!!

2007-11-19 09:45:05 · 7 answers · asked by Fuzzyglasses 3

You sold tickets to the school play. Advanced tickets were $4. Tickets bought at the door were $5.50. Total ticket sales were $440. Let x represent the nuumber of advanced tickets sold and y represents the number of tickets sold at the door. Write an equation to represent the number of tickets sold.

Here is my equation : 4x+5.5y=440.

then it asked me to find three possible numbers of advanced tickets sold at the door.

How do i solve?

2007-11-19 09:40:36 · 2 answers · asked by mveeyore_luver 4

2007-11-19 09:40:07 · 9 answers · asked by Anonymous

How do u factor
2x^2- 7x

2007-11-19 09:37:15 · 3 answers · asked by soccerhotdude101 1

whoever knows all about scale factors help me with this problem please suppose there is a dog named duke and duke had a picture and the scale factor fromDuke to the picture is 12.5%.

A. the size of duke from his nose to the tip of his tail is 51/2 iches
b. to build a dog house for Duke you need to know the height so you can make a doorway to accommodate him

So waht im basically asking is how tall is duke and hoe did you come up with that answer

Points top the one who gets it rigth first

2007-11-19 09:34:32 · 3 answers · asked by sekou h 2

The rectangular banquet hall floor has a width that is 7/12 its length and a perimeter of 228 feet. What are the dimensions of the banquet hall floor?

(can someone solve and explain this answer)

2007-11-19 09:32:48 · 2 answers · asked by Kira 2

The question i am stuck with is 3^x+1 = 15

2007-11-19 09:32:04 · 2 answers · asked by Paul T 1

Can someone help me out with these review questions? Who gives a test the day before Thanksgiving?! Argh..haha..thanks!!

Show if these series Converge conditionally, converge absolutely or diverge.
(all summation from 1 to infinity)

1. ((-1)^k) / ((k(k+1))^(1/2))

2. ((-1)^(k)(k!)^(2)) / ((2k)!)

3. ((-1)^(k)k!) / (2^(k))

I know there are three options and three questions but it doesn't mean that one is assigned to each, for example they could all converge absolutely. I just have no clue how to prove this and my prof canceled office hours today because it's snowinggggg =O

2007-11-19 09:29:27 · 2 answers · asked by Alysse 1

8. An executive at Westinghouse drives from his home in the
suburbs near Pittsburgh to his office in the center of
the city. The driving times are normally distributed
with a mean of 35 minutes and a standard deviation of 8
minutes.

a. In what percent of the days will it take him less
than 30 minutes to drive to work?
b. In what percent of the days will it take more than
40 minutes to drive to work?
c. Some days there will be accidents, etc., so the
trip will take longer than usual. How long will the
longest 10 percent of the trips take?

2007-11-19 09:00:36 · 1 answers · asked by Patricia F 1

2007-11-19 08:52:39 · 7 answers · asked by Anonymous

I cant figure out how to do these problems in my homework.

Convert each number from decimal form to the given base.

1. 86 to base five

2.19 to base two

3. 147 to base sixteen

4. 12888 to base 8

any help would be greatly appriciated

2007-11-19 08:44:19 · 3 answers · asked by Jay J 2

It has to do with my 5th graders math

2007-11-19 08:43:14 · 3 answers · asked by Donna 1

Homework help please!!!

2007-11-19 08:38:19 · 2 answers · asked by â?º NaTuReâ?º 2

how do i work out what 7- 4/3) is ??

2007-11-19 08:32:50 · 6 answers · asked by Anonymous

I just dropped a sealed bottle of vodka and the bottle rolled down the hill and stopped 25 feet from a pine tree. Unfortunately for me there is a big and angry dog chained by 50 feet long chain to a hook secured in the trunk of the pine.

As I tried to approach the pine, the dog immediately tried to attack me (thank god he is on the chain). All I can do is to walk at safe distance from the dog, while he closely follows me, barks loudly, and shows huge fangs.

2007-11-19 08:22:46 · 3 answers · asked by Alexander 6

Hi,

i got this curve:
x= (t^4)/4
y=(t^3)/3
z=(t^2)/2

And I'd like to find its norm at the point (4,-8/3,2) for t = -2

I know I can get the tanget to the curv, and there would be plenty or norms , but is there any specific one at that point ?

2007-11-19 08:13:27 · 1 answers · asked by Perro H 3

the first three terms of an arithmetic seris are (12-p),2p,(4p-5) respectively where p is a constant.
The value of p we've found...its part a)

but how many values of the series have a value of less than 400?

a)2p-(12-p) = 4p-5-2p
3p-12 = 2p-5
p=7

2007-11-19 08:02:05 · 4 answers · asked by Anonymous

an answer or a website to help me figue this @#$% out.

2007-11-19 07:55:37 · 4 answers · asked by Brian d 2

so im stupid

2007-11-19 07:51:47 · 7 answers · asked by Reaper 1

Hi, as part or a set of algebra questions from school, I have been asked

"Find the values of m for which the difference between the roots of the equation 16x^2 = mx - 2501 is 5."

I know how to use the discriminant to find the values that are real roots etc., but I have no idea how to work out the values in which the roots have a difference of 5.

The answers start with

"Let y, z be the 2 roots.
If ax^2 +bx +c = 0 then
y + z = -b / a
yz = c / a "
I have no idea what that means?
ANy hints would be appreaciated

2007-11-19 07:47:59 · 3 answers · asked by Julian B 1

Why is the sum of k=1 to k=infinity of 1/x^2 equal to pi^2/6?

2007-11-19 07:45:12 · 2 answers · asked by Calculus Nerd 1

2007-11-19 07:45:11 · 6 answers · asked by scrass2005 1

This one has me stumped...if you could tell me how you got to the answer so I understand the proof that would be great!

Thanks for your help :)

2007-11-19 07:39:30 · 3 answers · asked by Anonymous

If these are the numbers 514, 476, 497, 513, 471, 470, 441, 466, 443, 502, 528, 459, 548, 521, 517.. those are just some of them but how woudl i plot it? do i put two numbers for the stem or what.
Also what do these questions mean
a) choose an appropriate class interval and present these data in a frequency distribution table
b) Which class interval occurs most frequently

2007-11-19 07:34:41 · 1 answers · asked by itsgoingtobealright 3

2007-11-19 07:34:38 · 2 answers · asked by TPCAN 3