Mathematics - 19 September 2007

2007-09-19 17:00:18 · 2 answers · asked by Rachel V 1

Why can't my TI-84 plus graph two equations at once

2007-09-19 16:46:51 · 1 answers · asked by Anonymous

I'm in pre-cal this year and we're doing some alg 2 review
and i really don't have the time to factor 100 more problems (i've already done 50 btw)
so yeahh
this one guy in my class has a calculator (it's like the ti-89 or something like that)
and it has a program that factors equations for you
so i figure if a calculator has a program like that
there's got to be a website like that

2007-09-19 16:36:28 · 5 answers · asked by Nicole 3

The questions are:
27^x/9^2x-1=3^x+4

27^x(9^2x-1)=3^x+4

and
27^x+1=(1/9)^2x-5

I'd even be happy if you could just solve one:) Thank you!

2007-09-19 16:18:39 · 1 answers · asked by HSR 2

2007-09-19 16:07:14 · 9 answers · asked by Savannah the Great. 2

ok is the least common multiple of 6 and 3
6?

6x1=6
3x2=6

ITs probably right but o well
waste 5 pts

2007-09-19 15:57:16 · 5 answers · asked by yahoo2000 2

I am currently stuck on this question and I dont know how to start it.

[ (3u+4)(2u-2)^3 ] / [ (u-1)^2 ]

Additional Details
This is as u approaches 1 sorry

2007-09-19 15:45:15 · 1 answers · asked by Pngo 1

2007-09-19 15:42:03 · 9 answers · asked by Anonymous

cosθ/(1-tanθ)=(cosθ-1)/(1-〖sec〗^2 θ)

2007-09-19 15:26:32 · 1 answers · asked by MAN T 1

Analyze the following argument

If n is a real number such that n>2 , then n^2 >4 . Suppose that n less than or equal to 2, then n^2 is less than or equal to 4.

a) it is valid
b) It is not valid because it begs the question
c) It is not valid because it denies the hypothesis
d) It is not valid because it affirms the conclusion

2007-09-19 15:24:42 · 1 answers · asked by Corian 2

base is 2 for the logs but i cant make 3 a base of 2. so how do i solve for x?

2007-09-19 15:23:19 · 7 answers · asked by C.L. ~Raptors~ 4

Write the english phrase as an algebriac expression

2007-09-19 15:21:12 · 8 answers · asked by slamdunker3 1

A collection 17 coins of consisting of nickels and dimes is worth $1.15. How many dimes are there?

2007-09-19 15:16:11 · 8 answers · asked by Anonymous

Explain how u got this answer please, I'm taking a quiz about this tomorrow.

2007-09-19 15:13:28 · 11 answers · asked by Slim24/7 5

Explain how u got this answer please, I'm taking a quiz about this tomorrow.

2007-09-19 15:12:27 · 2 answers · asked by Slim24/7 5

a) Dick is 3 times as old as his brother, Ben. In eight years' time, the sum of their ages will be 28 years. How old is each one now?
b) I have 2 sisters. The product of their ages is 72. The sum of their ages is 18. How old are my 2 sisters?
c) Greg is 18 years old, 3 times as old as his sister, Janice. In how many years' time will Janice be half as old as Greg now?

2007-09-19 15:00:23 · 1 answers · asked by NinjaX 2

2007-09-19 14:46:53 · 10 answers · asked by slamdunker3 1

2007-09-19 14:31:30 · 3 answers · asked by patrick e 1

I'm supposed to be factoring without the quadratic formula. One of the problems is:

7y^2 - 21y +5

2007-09-19 14:30:20 · 4 answers · asked by nimble_rabit 1

Okay so how can you simply a expression


4a+2b+a


explain to me

2007-09-19 14:29:39 · 7 answers · asked by Anonymous

2007-09-19 14:29:32 · 2 answers · asked by patrick e 1

you are trying to buy a dress from a store and then you borrowed two 50 bucks from two of your friends...so its now 100....the price of the dress is 97....and you got the change of 3 bucks....then you gave the your two friends 1.50 bucks.....when you add that all the sum will be 99.50....where did the .50 go??

2007-09-19 14:23:49 · 12 answers · asked by 08franz 2

2007-09-19 14:20:33 · 5 answers · asked by hanna 1

if a statement was written like this:

~(p^q)

does that mean "p is not OR q is not."

i don't know if you have to negate the "^" symbol. so if a statement was written like that do you have to negate everything inside the parenthesis?

2007-09-19 14:19:58 · 7 answers · asked by james t 1

2.2lbs= 1kg
1 ton= 2000lbs

2007-09-19 14:19:18 · 3 answers · asked by Pheobe Halliwell 1

im sorry but i need some more help. i got the following answers for the problem but i am lost and need help. im getting a tutor tomorow.

for 1 i got undefined and 2 i got 6.7x2-3? please help me in any way possiable, thanks so much!

1. given f9x0=1-2x2, find f(x+ triangle thing x ) -f (x) over triangle thing x, for hear i got undefined

2. f (x) = 3x+1 g(x) = x2 -3, and for hear i got 6.7x2-3. oh my god anyone please guide me or tell me any good websights, is there any way to check my work or what? thanks you so much in advanced i really appricate it:}

2007-09-19 14:13:48 · 2 answers · asked by Anonymous

If a ball is thrown into the air with a velocity of 40 ft/s, its height in feet after t seconds is given by y=40t - 16t^2.
A) Find the average velocity for the time period beginning when t=2 and lasting
1) 0.5 second
2) 0.1 second
3)0.05 second
4)0.01 second
B) Find the instantaneous velocity when t=2

Please help!

2007-09-19 14:13:24 · 5 answers · asked by Anonymous

2007-09-19 14:11:34 · 2 answers · asked by Debra C 2

Evaluate the limit: (15(cos^2)x)/(7-7sinx)=?
This is as x goes to pi/2
Any help/adivce is greatly appreciated! :)

2007-09-19 14:07:27 · 2 answers · asked by spacemonkeys9999 1

A plane leaves Los Aangelas at 8:00 am for Philadelphia, which is in a different time zone. The plane travels a distance of 2,700 miles. It flies nonstop at an average speed of 540 miles per hour.

Los Angelas Pacific time 8:15
Philadelphia Eastern time 11:15

Explain the steps you would take in order to find the time the plane arrives in Philadelphia.Use words, numbers, and symbols in your explanation.

2007-09-19 14:06:48 · 5 answers · asked by btweet12 1