Mathematics - 30 October 2007

2007-10-30 04:28:27 · 2 answers · asked by Anonymous

Define the supremum sup A of abounded
subset A of R......""i will use x-n in sted of x sub n....""
let (x-n)be bounded sequence.define the sequence S-n by S-n = sup{x-n:k>=n} for n belonges to natural numbers "N".prove that the sequence S-n is converge...
i hope that the prove will be in details
thanx

2007-10-30 04:26:15 · 5 answers · asked by Dana S 1

A student says that the equation (a-9)(a-8)= 20 can be solved as follows : a-9=4 or a-8=5. If this is correct then explain why! I not explain why.How would u advise this student?

2007-10-30 04:24:10 · 8 answers · asked by Anonymous

2007-10-30 03:31:33 · 4 answers · asked by alw0322 1

i don't want to put in a long function every time, i just need to go back and change the variable

2007-10-30 03:27:28 · 3 answers · asked by boroballer 1

2007-10-30 03:25:18 · 3 answers · asked by smooches 1

what concetration in ppm do i have if i dilitued 10 , 17 , 24, 31, 45, 52 and 62 mls of this solution to 100mls in a volumetric flasks ?

2007-10-30 03:18:30 · 1 answers · asked by dooralarm 2

5x+16-x=-68

Tell whether the giving value of the variable is a solution of the equation.

2007-10-30 02:59:10 · 2 answers · asked by Sunnymorning 2

2007-10-30 02:51:48 · 1 answers · asked by Anonymous

If a piece of real estate purchased for $75,000 in 1998 appreciates at the rate of 6% per year, then its?
value t years after the purchase will be f(t)=75,000(1.06^t). According to this model, by how much will the value of this piece of property increase between the years 2005 and 2008?
a.$14,300
b.$21,500
c.$37,800
d.$59,300

2007-10-30 02:50:28 · 5 answers · asked by austin 1

2007-10-30 02:35:10 · 4 answers · asked by janelle 1

I have no clue how to do this. Please help. Thank you!

2007-10-30 02:10:19 · 3 answers · asked by Anonymous

the question goes: a car accelerates uniformly over a straight level road if at point A the car travells at 30m/s and at point B it travells at 60m/s find the velocity the car travells at C which is the midpoint of the line AB

2007-10-30 01:44:17 · 3 answers · asked by nightdevil 1

Solve each irrational equation. If an equation has no solution, so state:
a. 3/x - 1/6 = 1/x
b. 13/y-1 - 3 = 1/y-1

A car travels 60 miles in the same time that a car traveling 10 per hour faster travels 90 miles. What is the rate of each cars?

Find the indicated root or state that the expression is not a real number:
a. 3sqrt8/125 This is the cube root of 8/125
b. -4sqrt81

Simplify each expression:
a. sqrt45x^23
b. sqrt96/3

Add or subtract as indicated:
a. 4sqrt72 - 2sqrt48
b. sqrt75 - sqrt48

2007-10-30 01:37:47 · 3 answers · asked by Anonymous

2007-10-30 01:02:38 · 5 answers · asked by Anonymous

2007-10-30 01:02:06 · 1 answers · asked by vikas sharma 1

How is infinite series of sin, cos and also exponent series derived, could you tell me detailed about it, i know it come from the taylor polynomial but how the taylor polynomial is derived..

2007-10-30 00:41:01 · 3 answers · asked by datuk M 2